US274494A - Indicating scale-weight - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1. R. L. HASSELL.

INDIOATING SCALE WEIGHT.

No. 274,494. g Patented Mar.27, 1883.

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(No Model.)

4 Sheets-Sheet 2. R. L. HASSBLL.

INDIOATING SCALE WEIGHT.

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(No Model.) 4 Sheets-Sheet 3.-

R. L. HASSELL.

INDIOATING SCALE WEIGHT.

No. 274,494. Patented Mar.Z7,1883.

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(No Model.) 4 Sheets-Sheet 4.

R L. HASSELL.

,INDIGATING SCALE WEIGHT. No. 274,494. Patented-Mar.27, 1883.

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PATENT OFFICE.

RICH ARI) L. H ASSE LL,

OF (.311 [CA-Gt), ILLINOIS.

INDICATING SCALE-WEIGHT.

SPECIFICATION forming part of Letters Patent No. 274,494, dated March 2'7, 1883,

' Application filed May 5, 18. 2. (X0 model.)

To all whom it may concern:

Be it known that I, RICHARD Lrr'rELL Has- SELL, a citizen of the United States, residing at Chicago, in the county of Cook and State of llliuois, have invented certain Improvements in Scale-Beams, of which the following is ahigh numbers or heavy weights without the necessity of using detachable or separate weights on the counterpoise, or having lignres or graduating-marks on the beam-bar itself.

My invention also consists in providing a scale-beam with separate racks for performing the separate duties of moving the poise along the beam and giving motion to the revolving indicating mechanism. The object of this part of my invention is to lessen the wear of the teeth in the rack or racks which give motion to the revolving indicating mechanism.

Figure 1 is a face view of a scale-beam provided with myimprovements. Fig. 2 is an enlarged face view of the poise shown in Fig.1 as it appears after the removal of the face-plate P, the glass 0, and rubber ring it, Fig. f. Fig. 3 is the same as Fig. 2, with the dial-plate 1) and revolving hand fremoved. Fig. 4 is a vertical longitudinal section through the center of the poise. Fig. 5 is an end view of the poise, with the upper portion partly broken away to show a part of the intermittingly-revolving mechanism. Fig. 6 is a vertical transverse section taken at the line .r a; Fig.7, a horizontal section at line at 00.

Like characters indicate like parts in the different views.

In another application for patent, of even date herewith, I have described certain improvements in scale-beams, most of which improvements will he found in the present patent, and all of which, when desired, may he incorporated with it. Such improvements will not be further explained or referred to here, except so far as maybe necessary to explain the working of the present device.

The poise rests on a double-barred beam, as seen in Figs. 5 and 6. The shaft to which the handle H is attached passes up through the poise and has fastened to its upper end the one of the bars, as seen in Figs. 4, 5, and 6.

By turning the handle 11, therefore, the poise will he moved along the beam. The gears a a and E E, Fig. 6, are fastened to one shaft, as seen in the figure. The gears a a mesh with teeth out in the lower edge of each bar. Moving the poise along the beam therefore causes the gears a. mand consequentlyE E, to revolve. Thegear lfl meshes with the pinion It; fastened to the back of the gear F, and F, as will be seen, meshes with the gear 0, to which is attached the hand which revolves before the dial.

1 will now describe the mechanism for converting the continuous rotary motion of the gear a into the intermittent motion of the figured'disks. I shall confine my description to the mechanism on one side of the poise, as the mechanism on either side is substantially the same.

The gear 0 meshes with the gear i, and, as will be seen by referring to Fig. 7, the same shaft to which is fastened the gear '1 has also fastened to it a miter-gear which meshes with the miter-gear fastened to the shaft 1 and to the other end of this shaft 'visfastened a wheel, 1. This wheel 17 has a projecting pin which engages with the peculiarly-shaped wheel 10. The action of this wheel a and wheel to will be more clearly understood by referring to Fig. 5. The diameters of the gear i and the miter-gears are so proportioned that the wheel a makes one revolution for each revolution of the handf before the dial. Referring now to Fig. 5, it will be seen that at each revolution of the wheel *0 the projecting pin engages with the wheel w and moves it through the tenth part of a revolution. The wheel to revolves free on its shaft, and has fastened to it a gear, w, (partly seen in Fig. 7,) which meshes with the gear 10. It will be best new to refer to Fig. 3, where the gear w is seen at the righthand side of the poise. The gearw the figured disk (1, next to it, the ten-sided wheel I), and the wheel g, are fastened together and revolve on the shaft. The gear 10 and consequently the figured disk attached to it, revolve at the same rate of speed as the wheel 10, and therefore for each complete revolution of the hand gear a, which meshes with teeth on the side of 2' amass fbefore the dial the figured disk d makes the tenthpartofarevolution. Thewheelghasaprojecting tooth or teeth, which at each complete revolution of the figured disk (I engages with the gear h, which meshes with the gear to, fastened to the next figured disk, and moves it through the tenth partof a revolution. Therefore for each complete revolution of the hand f before the dial 1) the figured disk (1 makes the tenth part of a revolution, and for each complete revolution of the figured disk (I the next figured disk makes the tenth part of a revolution, and so on through the series as far and as many as may be desired. In the drawings I have shown four figured disks; but when the graduated dial D is used it will rarely be necessary to have as many.

M M M M, Fig. 3, are pawls which engage with the ten-sided wheels ordisks l),as shown in Fig. 6, retaining the figured disks (1 in their places and preventing thei accidental movement. The upper ends oi these pawls have a spring, a, attached to them,- as shown.

It will be observed that the wheel 70, driven by the pin-wheel r, diiiers l'rom an ordinary ten-toothed wheel driven by an ordinary single-toothed wheel or mutilated gear. The wheel 10 consists of a circular disk of metal, in which is cut a number of slots or notches which receive the projecting pin of the wheel r. The form and position of these slots or notches will he clearly seen by referring to Fig. 5, in which the wheel 20 is represented having ten ot'such slots. The advantage of giving the wheel 20 this peculiar shape is the avoidance of all sudden shock or jar to the registering mechanism, When the projecting pin of the wheel 1 engages with the wheel to it does not strike it with a sudden impact, like the cog of an ordinary mutilated gear engaging with the cogs of an ordinary gear-wheel; but when the projecting pin of 'v enters one of the slots of the wheel to it acts at first with a gradual sliding motion, and moves the wheel 10 from a state of rest, with a grad ually-inereasing speed, up to the point when the pin reaches the bottom of the slot, and theu'moves it with a gradually-decreasing speed until it again leaves the slot. When the projecting pin ot' a is not engaged with the wheel w the registering mechanism is prevented from moving by the action of the pawls on the ten-sided wheels I).

The dial 1) and the intermittinglymoving disks may he graduated and figured in any desired manner, and the dial 1) may be entirely dispensed with when desired.

I claim 1. In a weighing-scale, a beam bar or bars carrying an intermittingly-moving disk or disks, such as d. 1

2. In a weighing-scale, a beam bar or bars carrying an intermittingly-moving disk or disks, such as d, in combination with a graduated dial or dials, sm-h as l).

b. In registering mechanisms, the combination of an intermittingly-moving disk or disks, the peculiarly-shapml wheel 10, and the tensided wheel I).

I. In a weighing-scale, a beam bar or bars carrying the combination of an intermittinglymoving disk or disks, the ten-sided wheel b, the pawl M, and spring a.

5. In registering mechanisms, the combina tion of an intermittingly-moving disk or disks, the peculiarly-shaped wheel hr, the pin-wheel 'v, the mutilated gear g, and the gear 10.

6. In registering mechanisms, the combination of an interinittingly-moving disk or disks, the peculiarly-shaped wheel to, the pin-wheel v, the ten-sided wheelb, the pawl M, the spring a, the mutilated gear g, and the gear 10 7. A scale-beam carryingtwo or more toothed racks, one or more of such racks being used for the purpose of moving the poise along the beam, and one or more of such racks being used for the purpose of giving motion to the revolving indicating mechanism.

RICHARD LIT"ELL \\'itnesses Units. E. WILD, D. H. HENSHAW.

nAssELL.

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