US983385A - Weighing-scale. - Google Patents

Description

G. M. MAYER.

WEIGHING SCALE. APPLICATION FILED, MAB.18,1907.

983,385, Patented Feb..7, 191i.

2 BHEETSSHEET 1.

G. M. MAYER.-

WEIGHING SCALE. 1

APPLIOATION FILED MAR. 18,1907.

983,385, I Patented Feb.7, 1911.

2 SHEETS-SHEET 2.

1Q seph E. Cochran, onor about the 19th of ra'rnn r OFFIGE. I

' GEORGE M. MAYER, F ELKHAR'ZE, INDIANAK, ASSIGNOR T6 JOSEPH. E. COCERAN; OF ELKHAIRT, INDIANA.

WEEGEING-SCALE.

$pecificstion of Letters Patent.

Patented Fee. a, 1911.

To all whom it may concern:

Be it known that L'Gnonon M. Marian, a citizen of the United States, residing at Elkhart, in the county of Ellrhart and State of Indiana, have invented certain new and useful Improvements in "Weighing-Scales, of which the following is a specification.

In Patent No. 777,602, issued December 13, 190st, to Joseph E. Cochran, and also in application for Letters-Patent filed by Jo- February, 1906, Serial N umber 301,719, there is shown and described an improved construction of weighing scales in which the depression of the pan or platform is respec .tively resisted by a spring;' and a Weighted pendulum, and inovhich are employed two dials, one arranged in an inclined position; the pan or platform being located to one side of the inclined dial, and the hands of the dials being operated by means of a gear and rack connection, operatively related to the end of the scale-beam, so that the beam will swing in a vertical plane at right angles to the vertical plane of the hand operating gear shaft.

The present invention relates to an inn proved scale of this character, in which the platform or pan is arranged in front of the inclined dial, and the object. of the same is to provide an improved device of this character in which the beam will swing in the same vertical plane as the gear on the hand operating shaft.

' A further object is to provide an improved knife edge joint or swivel for mounting and balancing the hand operating rack.

A further object is to provide improved n'ieans for balancingand preventing the vibration of the rack around its pivotal support, and for maintaining the same in its operative position.

To the attainment of .these ends and the accomplishment of other new and useful objects, as will appear, the invention consists in the features of novelty in the construction, combination, and arrangement of the several parts hereinafter more fully de-' scribed and claimed, and shown. in. the ac wh ch 2-- Figure 1 is a side elevation partiy broken away, of ascale constructed in accordance with the principles of this invention; Fig.

' 13, let, dials, one of Qis an enlarged detail elevation of the dial hand operating rack, and the balancing and supporting means therefor; Fig. 3 is an end elevation" of Fig. 2; Fig. 4 is a sectional view on line H ci -Fig. 2. Fig. 5 is a detail perspective view of the supporting knife edge for the operating rack; l ig. *5 is a dctail view, partly in section, of the balancing weight; and Fig. 7 is a sectional view on line 7 of Fig. 6.

Rererring more particularly to the drawings, and in which the same reference characters designate similar parts throughout the several views, in this exemplification of the invention the numeral 19 designates a supporting base, 11a pivotally supported scale-beam, 12 a pan or supporting platform operatively related to the'scale beam, which, preferably the dial 13, is arranged in aninclined position;

and 15 designates a Weighted cam to which V the free end of the scale beam 11 is 'con-- nected by a suitable flexible connection 16 all of the above parts being of any desire construction and forming no part of the present invention.

'ilhe free end 17 of the beam 11 projects into "a suitable casing which is preferab' formed between the dials 13 and i4,and

journaled across the casing is a suitable shaft 18 to which is secured one dial hand,

as set forth in the patent and the applicationabove referred to. A car-wheel 19 is secured to the shaft 18, and s preferably located at a point intermediate the two dials. Projecting laterally from the forward end of the scale beam 11 is a bracket 20, which is secured to the beam 11 in any desired manner, preferably by means of one end 21 thereof projectin through the beam '11; and said bracket is held in osition in any desired manner, preferably ymeans of a. screw or bolt 22, which passes transversely through the beam 11 and enga es the bracket 20 near one end. This time at pro-' the face of the bracket 20 is reduced or bcv sled as at 25 at points intermediate its ends, and to form an upwanfilyl projecting knifev edge.

so I

ity 29 is adapted to rest and form a bearapcrture 2-1,-:t11(l into a position to be enproximity to'the beam 11, arg parallel ears -ing out of engagement with the pinion i9 -:h suitable bracket 26 is providedwith recessed portion 27 to form a bearing for the reception of the knife edge 24. This bracket 26 is of a length to substantially till 3 the space between the jaw 24 and the shoul dcred portion 28 of the bracket 20, and the extremities-29,80 thereof are tapered or pointed. The extremity 30 is adapted to rest and form a bearing against the shouldered portion and the tapered extreming againstthe end of a suitable screw or bolt 31 which passes through the transverse gaged by the. end 29. \Vhen in position, and with the bracket 26 resting upon the knife edge 25, so that said edge will enter the bearing 27, the screw or bolt 31 may be adjusted to prevent lateral movement or regulate the end play of the bracket 26.,

Projecting upwardly from the top of the bracket 26, preferably adjacent the end in or projections 32, which are provided with suitable apertures adapted to register with each other.

A suitable arm 38 is pivoted by one end between the ears or projections by means of a transverse pin 34, which passes through the apertures in the gears and a suitable aperture in the arm 33, and said arm is adapted to preferably project or extend transversely acrcss the beam 11. Secured to the free end of the arm is a suitable weight 35, which is preferably in the form of a disk cast or otherwise secured on the end of the arm. If desired, the extremity 36 of the arm may be flattened or widened so' as to form an extended surface for the weight 35. The arm is also provided with an up wardly projecting portion or ear 3? located preferably in line with its point of pivotal support 34. Secured to said ear or projection and by one end thereof is a suitable operating rack 38, the teeth of which are adapted to engage and mesh with the teeth 01 the gear 19 on the dial handshaft 18. It will be seen that the weight 35 on the free end of the arm 33 is disposed in such relation with the point of pivotal support of the arm 33 and the rack 58, that the normal tendency of said weight is to depress the free end of the arm 33 to cause'the rack 38 to always remain in engagement with the gear 19.

' If desired, a suitable rotatable member 39 may be provided and arranged in close proximity to the rear face of the rack 38, and at a point preferably adjacent the gear l 19, so as to prevent the rack 38 fronrjninp when a weight is suddenly placed upon or removed from the platform or support if! of the sc: le. The bracket 26 may be held from accidental displacement upon the l knife edge 25 in any suitable manner, preferably by means of a transverse pin or member 40 which passes through apertures in -=uitable depending portions ll, 4-2, of the l b 'acket 26, and which stand oncach side of the bracket 20. The bracket 20 is also provided \vith a vertically downwardly projectlug extension or arm 43, which is preferably formed as a continuation of the depending portion 42, and said arm or extension is so shaped that the free extremity thereof will project slightly under the bracket 20, and normally stand approximately beneath the rack The free extremity 4-4 of the arm or extension 43 is preferably enlarged or deflected laterally on both sides of the arm, so to form an extended surface, and cast or otherwise secured to said extended end so as to surround the same, so that said end find the adjacent extremity of the arm 43 will be embedded in the weight, is a suitable weight or member ii This weight or memher 45 is preferably thinin cross-section, and of some length and width so as to form an extended surface, which will act in the .nature of a fan, to act upon the air to check the vibration of the bracket 26 around its point of pivotal support, or the knife edge 35, to always maintain therack o8 in a vertical or operative position, so that the same will not become disengaged from the gear wheel 19.

It is thought that from the above description the ope 'ation of this improvement will be fully understood, and it will be noted that when the free end 17 of the beam 11 is depressed by the placing of an article upon the pan, or platform 12, the brackets 20 and 26 will be lowered, and as the beam descends the weight or member 45 will cause the bracket 26 to move about the knife edge 25 to maintain the rack 38 in a proper i sition, and the weight 35 on the free end of the arm will also act upon the rack 38 to keep the same in mesh with the gear if). it will also be noted that the weight or member 45 is so an ged that its extended faces offer a large surface to the air to prevent vibrations of the bracket 26 about the knife edge 25.

In order that the invention mightbe fully understood by those skilled in the art, the

details of the foregoing embodiment thereof have been thus specifically described, but

Vhat I claim as new and desire to secure by Letters Patent is- 1. In combination in a scale, a dial, an indicator movable over the dial, an operating shaft for the indicator, a pivoted scale beam, one end of which is movable in the same vertical plane as the operating shaft, a rack pivotally supported by the beam, :1 gear on the shaft adapted to be engaged and rotated by the rack to move the indi cater, when the beam is moved about its pivot, and means for balancing the rack means for maintaining said rack upon the beam and for automatically maintaining said rack always in avertical position. I 7

2. In combination in a scale, a dial, an indicator movable over the dial, anoperab ing shaft for the indicator, a pivoted scale beam, one end of which is movable in the same vertical plane as the operating shaft,'

a rack pivotally supported by the beam, a gear on the shaft adapted to be engaged and rotated by the rack to move the indicator, when the beam is moved about its pivot, means for balancing the rack upon the beam and for always maintaining said rack in a vertical position while the beam is being moved, and means for holding said rack in engagement with the said gear.

3. in combination in a scale, a dial, an indicator movable over the dial, a gear for operating the indicator, a pivote'lll, scale beam, one end of which is movable m the same vertical plane as the operating shaft, a rack pivoted to the beam and engaging the gear for rotating the latter when the beam is moved about its pivot, and means for balancing the rack upon the beam and for maintaining the rack in a vertical position, saidmeans also serving to prevent oscillation of said rack about its point of pivotal support when the beam is being moved.

t. In combination in a scale, a dial, an indicator movable'over the dial, a gear for operating the indicator, a pivoted -scale beam, a rack pivoted to said beam, 2. weighted arm operatively related to the rack and adapted to hold said rack in engagement with the gear, and means for balancing the rack upon the beam and for maintaining said rack in avertical position, said means also serving to prevent oscillation of said rack about itspoint of pivotal support when the beam is moved.

In combination in a scale, a dial, an indicator movable over the dial ,a gear for operating the indicator, a pivoted scale beam, a rack pivotally supported by the beam, and engaging the gear for operating the indicator and means for maintainin said rack in a. vertical position, said means being provided with an enlarged surface exposed tothe air and against which surface the air forms resistance to prevent vibrw tion of the rack about its point of pivotal support.

'6. In combination in a scale, a dial, an indicator movable over the dial, an operating shaft for the indicator, a gear for operating the shaft, a pivoted scale beam, a rack pivotally supported by the beam, and engaging '.the gear foroperating the indicator, means for holding the rack in engagement with the gear, additional means for preventing disengagement of the rack and gear, and

dicator movable over the dial, an operating gear for the indicator, a pivoted scale beam, a member supported by the beam for pivotal movement longitudinal of the beam,

I a rack pivotally supported by the member,

means for holding said rack in engagement with the gear, and means operatively related tothe said member for balancing the rack on the beam and for maintaining said rack in a vertical. position.

8. In combination in a scale, a dial, an indicator movable over the dial, an o erating gear for the indiator, a pivoted sea e beam, a laterally projecting knife edge bearing on the beam, a member mounted for pivotal movement on said bearing, a rack pivotally supported by the member and movable in a plane transverse to the plane of mgvement of the member, said rack being adapted to engage the said gear, and means for maintaining the rack in a vertical position when the beam is moved about its point of pivotal support,

9. in combination in a scale,'a dial, an indicator movable over the dial, an operating gear for the indicator, :1 pivoted scale beam, a laterally projecting knife edge bearing on the beam, a member mounted for pivotal movement on said bearingta rack pivotally supported by the member and movable in a plane transverse to the lane of movement of. the member, said rac being adapted to engage the said gear, and means for maip-- taining the rack in a vertical position and for preventing said rack and-member from vibrating about the point of pivotal support of the latter when the beam is moved.

10. ln combination in a scale, a dial, an indicator movable over the dial, an operating gear for the indicator, a pivoted scale beam, a laterally projecting kni'fe edge bearing on the beam, a member mounted for pivotal movement on said bearing, a rack pivotally supported by the member and movable in a plane transverse to the lane-of movement of the member, said rac being adapted to engage the said gear, and means operatively related to the member and against which the air is adapted to offer a resistance to prevent the rack and member from vibrating about the pivot of the latter, said means being also adaptedv to maintain the rack in a vertical position when the beam is'moved:

ing gear for the indicator, a pivoted scale beam, :1 laterally projecting knife edge bear-- ing secured to the beam,'a member provided with a seat adapted to receive said knife edge and about which the member is movable, a rack pivoted to the men'iber and movable in a plane tamsverse to the plane of 5 movement of the member, means for maintaining said raclcin engagement with the gear, and means depending from and projecting below the member for maintaining the rack in a vertical position, and for preventing said member from vibrating about its point of pivotal support.

12. In combination in a scale, a dial, an indicator movable over the dial, a gear for operating the indicator, a pivoted scale beam, at laterally projecting bracket secured to the beam and being provided with a knife edge, a member pivotally supported by the knife edge, a 'ack pivoted to the membe and movable in a plane transverse 2 to the plane of movement of the member, said rack engaging the gear, a weighted arm operatively related to the rack for holding the same in engagement with the gear, and a weigh -d arm depending from the member for maintaining said rack in a vertical position.

13. In combination in a scale, a dial,ian indicator movable over the dial, a gear for operating the indicator, a pivoted scale beam, a laterally projecting bracket secured to the beam, and being provided with a knife edge, a member pivotally supported by the knife edge, a "ack pivoted to the member and movable in a plane transverse to the plane of movement of the member, said rack engaging the gear, a weighted armoperatively related to the rack for holding the same in engagement with the gear, a weighted arm depending from the member for maintaining said rack in a vertical position, and means for preventing endwise movement of the member.

'14. In combination in a scale, a dial, an indicator movable over the dial, a gear for operating the indicator, a pivoted scale beam, a laterally projecting knife edge hearing secured to the beam, a member pivotally supported by the bearing, a rack pivoted to the member and movable in a plane transverse to the plane of movement of the member, said rack engaging with the gear, means tormaintaining the rack in operative position with relation to the gear, a depending weighted arm operatively related to the member for maintaining the rack in a vertical position, and means for preventing displacement of the member with relation to the knife edge bearing.

15. In combination in a fale, a dial, an indicator movable over the dial, a gear for operating the indicator, a pivoted scale beam, :1 laterally projecting knife edge hearing secured to the beam, :1 member supported for pivotal movement on the knife edge, a 65 rack pivoted to the member and movable in a plane transverse to the plane of movement of the member, means for holding said rack in engagement with the gear, said member being provided with downwardly rojecting portions on each side of the bearing, a transverse member engaging the said portions below the bearing, one of said portions being extended to form an arm, and a 'weight secured to said arm for maintaining the member and adapted to maintain said rack in a vertical position when the beam is in any of its positions.

1?. In combination in a scale, a dial, an indicator for the dial, a gear for operating the indicator, a pivoted scale beam, a bracket projecting laterally from the beam, and provided with a projecting car at its free end, said bracket being also provided with a knife edge bearing between the ear and the beam, a member supported for pivotal movement on said knife edge, a transverse member passing through the ear and adapted to engage one end of the member to prevent endwisc movement thereof,a rack pivoted tothe member and movable in a plane trans verse to the plane of movement of the member, means for holding the rack in engagement with the gear, and means for mamtaining said rack in a vertical position and for preventing vibration of said rack and member about the point of pivotal support of the latter.

l8. In combination in a sale, a dial, an indicator. movable over the dial. a gear for operating the indicator, a pivoted scale beam, at b'acket projecting laterally from the beam and provided with a projecting portion at one end, said bracket being also provided'with a knife edge between said projecting portion and the beam, a member mounted for pivotal movement on said knife edge. the extremities of said member being tapered, an adjustable member passing through the projection on the bracket and engaging one extremity of the member, for preventing endwise movement of said member, a rack pivoted to the member and engaging the gear, and means operatively' related to the member for maintaining the the'support, a rack pivoted to the member and movable in a plane transverse to the plane of movement of the member, said rack havlng engagement with the gear, means for 'maintaining the-rack in engagement with the gear and balancing means operatively related to the member for inaintaining the rack in a vertical position, said means bein also adapted to prevent vibration of the rack and member -about the pivot of the latter by the resistance of the air against the face of the said means.

20. In combination in a sca1e,-a dial, an indicator movable over the dial, an operating shaft for the indicator, a pivoted scale beam, one end of which is movable in the same vertical plane as the operating shaft, a rack pivotally supported by the beam, a gear on the shaft adapted to be engaged and rotatedby the rack to move the indicator when the beam is moved about its pivot, and gravity means for balancing the rack upon the beam and for always maintaining said' rack in a vertical positron.

2-1. In combinatlon in a scale, an indicator, a gear for operating the indicator, a pivoted scale beam, .a rack supported by the beam for pivotal movement in a plane transverse to the plane of movement of the beam,

and also for pivotal movement in a plane lengthwise with respect to the beam, means for maintaining the rack in engagement with p the gear and means operatively related to the rack for maintaining the rack in a vertical position, said last named means being,-

movable .in a plane lengthwise with respect to the beam.

22. In combination in a scale, an indi verse to the plane of movement of the beam,

and also for pivotal movement in a plane lengthwisewith respect to the beam, means for maintaining the rack in engagement with the gear, and gravity means operatively related to the rack for maintaining the rack in a vertical position, said gravity means being movable in a plane lengthwise with respect to the beam, and being adapted to prevent vibration of the rackby the resistance of the air against the face of said gravity means.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 14th day of March A. D. 1907.

' GEO. M. MAYER. Witnesses:

FRANCIS A. HOPKINS, J H. JOCIIUM, Jr.

Images