US1723354A

US1723354A - Scale

Info

Publication number: US1723354A
Application number: US234353A
Authority: US
Inventors: Jaenichen Louis
Original assignee: STANDARD COMPUTING SCALE COMPA
Current assignee: STANDARD COMPUTING SCALE Co; STANDARD COMPUTING SCALE COMPA
Priority date: 1927-11-19
Filing date: 1927-11-19
Publication date: 1929-08-06
Anticipated expiration: 1946-08-06

Description

6,1929, JAENICHEN I 1,723,354

SCALE Filed Nov. 19, 1927 3 Sheets-Sheet l I WK A TTORNE Y.

Aug. 6, 1929. L. JAENICHEN 1,723,354

SCALE Filed Nov. 19, 1927 3 Sheets-Sheet 2 jw' MM BY I Y ATTORNEY Aug. 6, 1929. 1.. JAENICHEN scALE Filed Nov. \19. 1927 3 Sheets-Sheet 3 v I {V V EN TOR A TTORNEY.

Patented Aug. 6, 1929.

UNITED STATES PATENT OFFICE.

LOUIS JAENICHEN, 0F SPRINGFIELD TOWNSHIP. OAKLAND COUNTY, MICHIGAN, AS-

SIGNOR TO THE STANDARD COMPUTING SCALE COMPANY, OF DETROIT, MICHIGAN,

A CORPORATION OF MICHIGAN.

SCALE.

Application filed November 19, 1827.

The present invention relates to counter scales and particularly to scales of the type using a swinging weight in the place of springs.

Among the objects of the invention is 1mproved mechanism for actuating the indicating means.

Another object is to provide improved means for adjustment of the indicator means.

And still another object is improved means for permitting shipment of the scale,

' after factory adjustment, without disturbing such adjustment.

Still other objects will readily occur to those skilled in the art upon reference to the following description and accompanying drawings in which Fig. 1 is a side elevation with parts re moved of a scale embodying the invention;

Fig. 2 is a plan view of the weighing levers;

Fig. 3 is an enlarged elevation of the counter weight mechanism;

Fig. 4 is a similar view of a modified form of the latter;

Fig. 5 is a side elevation of the rack adjusting guide.

As shown in the drawings the scale comprises a platform lever housing 10 mounted upon a base frame 11, which latter also supports the mechanism and is provided with leveling feet 12. Housing 10'carries at one end an upright housing 13 serving to support and enclose the indicating drum 14 and the actuating mechanism therefor.

Base frame 11 is provided with two upright posts 20, one oneach side each having two bearings therein, and in the forward bearings (i. e., those toward the indicator end of the scale) are the knife edge supporting fulcrums 21 of the primary lever 22. This lever 22 has at its forward end an arm 23 by-means of which this end of the lever is supported in vertically movable means to be described.

Lever 22 also is provided a short distance forward of bearings 21 with a pair of upturned knife edges 24 and somewhat further forward with another pair of upturned lmife edges 25.

The rear end of lever 22, that is the arm beyond bearings 21 is provided with a slide 26 upon which is mounted the set weight 27 Serial No. 234,353.

accurately adjustable to position by any suitable means (not shown).

A secondary lever 30 is provided with pivot 33 at its forward end coacting with a bearing in the lower end of a pin 34 which in turn has an upturned pivot coacting with a bearing in a cross member 35 mounted on a pair of posts 36 secured to base frame 11.

The rear end of lever 30 is provided with a pair of upturned knife edges 37 which with the knife edges 25 furnish four points of support for platform frame 40. The latter is provided with four posts 41 having bearings in their lower ends adapted to coact with the

knife edges

25 and 37. A suitable platform 42 rests upon frame 40 and a guard 43 may be attached to the frame 40 as desired.

As mentioned above the forwardly extending arm 23 of lever 22 is supported in vertically movable means and this is shown best in Fig. 3. As shown in this figure, the end of arm 23 is provided with a pivot pin 45 coacting with a bearing 46 carried in a stir-' rup 47. This stirrup 47 is suspended on a strap or wire 48 which is secured at its upper end to the upper end of a curved member 50 as by a screw 49 so that for a portion of its length the strap or wire 48 in rest position lies upon the curved surface. Member 50 is at one end of a counterpoise lever 51 which is provided with a knife edge 52 supported in a bearing 53 carried at the upper end of a pedestal 54 mounted on the base frame 11. At the other end of the lever 51 is a second curved member 60 whose curved surface is an arc whose center is at the edge of knife edges 52 and whose radius is somewhat longer than the radius of member 50.

tending ends 69 provided with adjusting weights 70. One of the ends 69 is provided with a continuation 71 carrying the pivot pin 65 and also a laterally extending arm :sl' and'forming part of thelever 51.

' ber 50with its head in the slot 87. the bolt 88 will change the angular relation ;,It:is preferred to makethe lever 51 and arm 81Iin. three parts, member 60, arm 81 and'member'50 being separate and carried cnacylindrical core 85 in which is mounted :the knifeedge 52. The pieces carrying 'member 50 and arm- 81 will befixed'on core "85 by set-screws as at 86, but member 50 will be 'angu'larly adjustablethereon. Such adjustment may be accomplished by providing aradially extending slot 87 in arm 81 and 'an eccentric headed bolt 88 in the mem- Rotating of the two parts and the adjusted position ,may then be maintained by means ofscrews "89 threaded into member 60. 'Thesescrews may also be utilized toaflixa graduated scale 90 serving with the slot 91 in bolt 88 to indicate the adjustment.

'Another feature of the presentscale ;is

the means for relative adjustment of rack 75 andgear 76,-an'd guiding the rack-"in scale operation. The guide consists of a bracket 100mounted on housing 13 and extending upward to opposite the point'of engagement-of the rack and gear. This bracket-near itsupper end carries a spring -an'd holding it in engagement with the gear. This spring arm is held outwardly from the bracket 100 in its adjusted position "by a arm-101 whose'upper end is provided with a U-shapedguide 102 embracing rack 75 -screw 103- whose'head lies against the end of a screw bushing '104. The adjustmentis made 'by-so'locatingbushing 104 thatthe =-screw 103 is in its extreme inward position for '-proper adjustment.

may :be set-at the/factory and the spring cured in disengagement for such purpose.

Thebushing 104 released for shipping, the'rack 'being se- Proper adjustment when setting the scale 'upi'for use will then consistin driving in screw 1-03 to its inner position.

Fig. 4 illustrates aJmOdified formof the vpendulum assembly. In this figure, the :pendulum lever 151 is pivoted at 152 on a suitable support indicated at 160 and-has -pivotally attached to one end as at 153 a rod 154 with a stirrup.- 155 at its lower. end. for

the end of lever 23. The other end of lever 151 is provided with an eccentrically arranged curve'd member 156 upon which is carried the strap or wire'157 having at its lower end stirrup 158 for the end of lever 66, the latter carrying therack- -as inuthe other form.

The chief differencev between these two .-forms of beams lies in the factthat, in the first form, the beam actuating power is applied to the eccentric member while in the second form the power is applied to the concentric member, 'i. =e.,; to "concentrically moving arm .158 of lever 151. Nowhaving described the invention-rand the preferred form of embodiment thereof, it 5 is to: be understood that the said. inven- -.tion is tobe-limited, not to the'specific .de-

tails herein set forth, but, only bythe-scope of the claims which follow.

1.'In a scalehaving a weight indicator and a platform,=-supported on a-weighing leversystem, which system consists of main lever having a free end andzauXilia -y 1 levers, means for transferring theinomment 'of the-said free end to the weight-indicator,

said means comprising alever pivoted on a fixed support, and having at its-opposed ends curved-surfaceslying in paralleluvertlcal planes,'-to the: upper end of one ofsard :CHFVGCLSUTftLCQS being attachedcflexible-suspending means for the said free end,-.-and -tothe uppertendof the other of saidsurfaces being attacheda'secondzfiexible sur- I pending"means,amember carrying indicator actuating means suspended by. said second :flexible suspending means, said memberbeing adapted to fix the path of movement of. thetsaid actuating means, andwaiweighted arm fixed to said last mentioned. lever-sand tending to=maintain the latter in .a.-. hori azontalposition;

2.-II1L scale havinga weight indicator and .a platform supported on .a weighing -lever system, ''which system consists of a main lever having a free end and auxiliary levers, means for transferring the movement of the said: free endto the weightindicator, said. means comprising a lever pivoted on; a

fixed: support, and having at tits iopposed. ends curved surfaces lying in parallel vertical planes,-vone of. said surfaces being. concentric and one being eccentric to .the pivot of said lever,tothe. upper. end of one of said curved surfaces :being attachedfiexible suspending means for-the said'free. end,1and-to the upperend of' the other of said surfaces being attached ai-secondflexible suspending .means,'. a member carrying indicatoractuating means suspended by said second flexiblesuspending means, said member being :adapted 'toL-fiX' the path of movement of the said actuating means, and aweightedyarm fixed tosaidlast mentioned lever and-tending to maintain the latter in a horizontal position.

3. In a scale having a weight indicator and a platform supported on a weighing lever system, which system consists of a main lever having a free end and auxiliary levers, means for transferring the movement of the said free end to the weight indicator, said means comprising a lever pivoted on a fixed support, and having at its opposed ends curved surfaces lying in parallel vertical planes, one of said surfaces being concentric and one being eccentric to the pivot of said lever, to the upper end of said eccentric curved surface being attached flexible suspending means for the said free end, and to the upper end of the other of said surfaces being attached a second flexible sus pending means, a member carrying indicator actuating means suspended by said second flexible suspending means, said member being adapted to fix the path of movement of the said actuating means, and a weighted arm fixed to said last mentioned lever and tending to maintain the latter in a horizontal position.

4. In a scale having a weight indicator and a longitudinally movable member for actuating the same, a guide for said member, a support therefor, and means for adjusting said guide consisting of a bushing threaded internally and externally mounted in said support, a screw in said bushing of such length as to properly adjust the guide when screwed down tightly in said bushing, and means to fix the bushing in adjusted position.

5. In a scale having a weight indicator and a longitudinally movable rack for actuating the same, a guide for said rack, a sup port therefor and means for adjusting said guide consisting of means adjustable toward and away from the rack, means to fix said adjustable means in adjustable position, and a screw threaded in such adjustable means of such length that when screwed fully in moves said guide to the desired adjusted position.

6. In a scale, a pendulum mounted on a knife edge of a pivot, said pendulum having three adjustable arms extending radially from the pivot, one arm having a weight fixed to its extended end, each of the two other arms having at the extended end thereof a surface parallel lengthwise to and curved about the longitudinal bearing edge of said pivot, each of said three arms being adjustable in angular relation to said other arms and to the angular contour of said pivot and means for holding said three arms in such adjusted positions.

7. In a scale, a pendulum mounted on a pivot edge, said pendulum having three adjustable arms, the first arm having a weight fixed to its extended end, the second arm at its extended end being connected by a flexible band to the load receiving platform lever system, the third arm at its extended end being connected by a flexible band to the weight indicating mechanism, each of said three arms being adjustable in angular rela tion to the other arms and to the angular contour of said pivot and means for holding said three arms in said adjusted positions.

LOUIS J AENICHEN.