US1223379A - Recording-machine. - Google Patents

Description

Patented Apr. 24,1917.

WITNESSES ATTORN EYS UNITED sTAr srarENr OFFICE.

CLYDE GARDNER, OF DETROIT, MICHIGAN, ASSIGNOR T0 BURROUGHS ADDING MACHINE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

RECORDING-MACHINE.

Specification of Letters Patent.

Patented Apr. 24, 1917.

Application filed August 15, 1916. Serial No. 115,114.

To all whom it may concern:

Be it known that I, CLYDE GARDNER, a citizen of the United States, residing at Detroit, in the county of \Vayne and State of Michigan, have invented certain new and useful Improvements in Recording-Machines, of which the following is a specification.

The object of the present invention is to provide an improved form of means for signaling or giving warning when the end of an inserted sheet of paper is about to be reached, the invention being intended primarily forv use in connection with adding and listing machines though it may be employed in other connections. By my invention I accomplish the desirable purpose of having the passageway for the paper normally free so that when a sheet of paper is to be inserted it is not necessary to retract the feeler of the sheet-end Warning equipment.

In the drawings which accompany and form part of this specification Figure 1 represents in vertical cross-section the rear portionof a familiar make of adding and listingv machine with mechanism applied thereto embodying my present invention; Fig. 2

' is a similar view though not including as many parts and alsodifi'ering from Fig. 1 in showing the changed relationship of parts due to the passing of the sheet of paper andv subsequent operationof the adding machine; Fig. 3 is a partial rear elevation and partial cross-section of parts appearingin Fig. 1.

The reference numeral 1 designates the roller platen of the adding machine which platen is journaled between side pieces 2 of a laterally shiftable carriage 3. The numeral 4 designates a feed ratchet on the said platen, and 5 afeed pawl pivotally mounted upon and spring-connected with a rocking bail 6. The reference numeral 7 designates a rocking arm which is a familiar element of the above-mentioned make of adding machine and operates upon a stud 8 of said paper feed bail.- The latter is as usual actuated in one direction by a spring 9. The

' or carriage back for supporting the inserted sheet of paper which lies against it as it passes down in rear of the roller platen. In

the drawings the reference letter. P designates a sheet of paper which in Fig. 1 is shown as having been fed to a considerable extent but not quite far enough to bring into action the signaling means. Thus it still covers a slot or opening 10 in the apron. At this point the paper passes behind an angular plate 11 which is secured by suitable ears and screws to the sides 2 of the paper carriage and forms with the apron 10 a chute to receive the sheet of paper. A 1

portion of this plate 11 is parallel with and closely adjacent to the apron 10 and this portion of the plate is slotted as shown at 11- in line with the slot 10 of the apron. The paper is backed up by this plate 11 around the slots so as to be able to hold back the feeler of the signal ing means.

The feeler is in the form of a finger 12 registering with the said slots and secured at its upper end to a rock shaft 13. It is of angular form projecting downwardly from said shaft and thence inclined forwardly and at its terminal portion being substantially horizontal. Its extremity normally stands in the slot 10 but does not protrude through it, so that the passageway for the paper into the chute and on to the platen is not obstructed. There is also secured to the shaft 13 a depending arm 14, and there is loosely hung upon said shaft adjacent said arm a second arm 15 which projects somewhat farther downward. The two-arms are connected together by a spring 16 and norout that bail is normally held up by the rocking arm 7 as illustrated in Fig. 1. This means that the said finger 6 is normally held forward and consequently the upper arm of the bell crank lever 17 is held rearward and the feeler finger 12 correspondingly held back.

It will be understood that the restraint thus imposed upon the feeler finger is removed as soon as the machine is operated because this involves rocking of the arm 7 in a counter-clockwise direction and the pulling down of the feed bail by the spring 1) and corresponding retreat of the finger 6 from the bell crank stud 17*. I combine in one simple set of devices means for applying force to swing the feeler finger forward and means for soundin an alarm under actuation by the said ball finger 6. Thus I pivot at 20 upon a fixed circular disk 21 a cam lever 22 and a bell-striker lever 23. The cam lev'er bears upon a stud 15' at the lower end of the aforesaid pendent arm 15 and a spring 25 which connects the cam lever and striking lever tends to swing the former forward and correspondingly swing forward the said arm 15 and the feeler finger. Such action is normally blocked by engagement of the stud 1'2 with the bail finger 6, as before mentioned. When that restraint is removed, as

the machine starts to operate, then the spring 25 takes effect but if the sheet of paper is not advanced far enough to uncover the slot 10 the only result is to press the extremity of the feeler finger 12 against the paper and the relative position of parts would still be substantially as shown in Fig. 1. If, however, the sheet of paper has, advanced so far as to uncover said slot, then when the feed bail swings down the feeler finger will be projected through the slot and on through the slot 11 of the plate 11 and into contact with the roller platen as illustrated in Fig. 2. The dotted lines in this figure illustrate the position assumed by the cam lever 22 prior to the return forward of the bail finger 6 and it will be noted that correspondin dotted lines show the striker lever 23 in t e same position it has in Fig. 1. The spring 25 is attached to an arm of the cam lever 22 which has a lateral lug 22 which lug lands against the edge of a cutout portion of the striker lever 23 when the spring 25 acts. A spring 30 is secured at one end to the stationary disk 21 and at the other to an arm 23 of the striker lever and normally holds the latter in the position shown in Fig. 1 with said arm against a stop lug 21* on said disk 21.

The swinging of the cam lever 22 by its spring 25 brings its lower end into the path of movement of the bail finger 6 Consequently when the latter swings forward as the operation of the machine proceeds, it will act upon the cam lever in the manner illustrated in Fig. 2 and retract the striker lever and then pass by and operate upon the stud 17 to restore the feeler finger to its normal position. The action of the bail finger upon the cam lever involves some further forward movement of the arm 15 and this is the occasion for yieldingly connecting that arm with the feeler finger through the medium of the spring 16 as hereinbefore described.

The circular disk 21 is riveted to a plate 31 supported by the shaft 18 and another shaft or cross rod 32 and the plate and disk support a bell 40 within which the striker lever 23 is located. The striker 26 is loosely mounted upon said lever 23 so as to provide for rebound and an effective sounding of the hell. It will of course be understood that when the bail finger 6 operates u on the cam lever 22 the spring 30 is stretc ed and then when said finger passes by the end of the cam lever said spring acts to throw the striker against the bell and give the alarm.

I claim:

1. The combination of paper-holding means, a feeler adapted to be obstructed by the paper, means normally holding said feeler back from the paper s ace, means for intermittently freeing the eeler, and signaling means set by the feeler when so freed and when also unobstructed by the paper.

2. The combination of paper-holding means, a vibratory feeler adapted to be obstructed by the paper, means tending to force the feeler into contact with the paper, a reciprocating paper-feed element normally holding the feeler back from the paper space, and signalin means set as an incident to the freeing o the feeler from such restraint and operated by said paperfeed element.

3. The combination of apertured paperholding means, a vibratory feeler-finger alined with the aperture thereof, an operating arm for said finger, a spring-actuated lever engaging said arm and tending to project the finger through the aperture, a rocking member opposing the spring, a reciprocating paper-feed element normally backing up said member, and signaling means operated by said element through the medium of said spring-actuated lever when the latter has projected the feeler-finger into space vacated by the paper.

4. The combination, of apertured paper-- holding means, a vibratory feeler-finger alined with the aperture thereof, an operating, arm for said finger, a spring-actuated lever engaging said arm and tending to project the finger through the aperture, a rocking member opposing the spring, a reciprocating paper-feed element normally backing up said member, and a spring-actuated signaling element engaged by said spring-actuated lever, the latter adapted to be flipped by the feed-element to retract and release said signaling element when the lever has projected the feeler-finger into space vacated by the paper.

5. The combination of apertured paperholding means, a vibratory feeler-finger alined with the aperture thereof, an operating arm for said finger, a spring-actuated lever engaging said arm and tending to project the finger through the aperture, a rocking member opposing the spring, a reciproeating paper-feed element normally backing up said member, a bell, and a springactuated striker engaged by said spring-actuated lever, the latter adapted to be flipped by the feed-element to retract and release the said striker when the lever has projected the 'feeler-finger into space vacated by the paper.

6. The combination of apertured paperholding means, a vibratory feeler-finger alined with the aperture thereof, an operating arm yieldingly connected to said finger, a spring-actuated lever engaging said arm and tending to project the finger through 5 the aperture, a rocking member opposing the spring, a reciprocating paper-feed element normally backing up said member, and signaling means operated by said element through the medium of said spring-actuated 20 lever When the latter has pro ected the feeler-finger into space vacated by the paper.

CLYDE GARDNER.

Images