US815684A - Computing-scale. - Google Patents

Description

PATENTED MAR. 20, 1906.

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INVENTOR J. W. CULMER. COMPUTING SCALE.

APPLIOATION FILED Nov. 23, 1904.

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PATENTED MAR. 20, 1906.

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N0. 815,684. PATENTED MAR. 20, 1906. J. W. GULMER.

GOMPUTNG SCALE.

APPLICATION FILED Nov. 23, 1904.

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S UQLW am No. 815,684. PATBNTED MAR. 20, 1906.

J. W. GULMER.

COMPUTING SCALE.

APPLICATION FILED NOV. 23, 1904.

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WIT/V S58.' NVENTOR NITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented March 20, 1906.

Application led November 23. 1904. Serial No. 234,099.

T0 all whom, t may con/cern.'

Beit known that I, Jol-IN W. CULMER, a citi- Zen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and usci-ul Improvement in Computing-Scales, of which the following is a specification, reference being had to the accompanying drawings and to the numbered reference-marks thereon.

My invention relates to computing-scales of the class which indicate the value of an article at a given price per pound or unit and which price is determined by the changing of the relation between the fiXed Weighing elements and the variable value-indicating elements of the mechanism.

The object of the present invention is to provide an improved computing-scale which is simple in operation and in which the price bar or lever is greatly elongated over the 'ordinary construction and the element of error or variation thereby greatly decreased.

The invention further consists in the provision upon the members of the normal weighing and computing mechanisms, of a means of connecting said mechanisms invariably at any desired multiple oi leverage and preventing the sliding of the one in its relation to the other, and the consequent error due to such sliding.

The invention further consists in the eXtension of the iixed weighing-beam upon both sides of its supporting-fulcruni and its provision with counterpart scales, one of which is inverted or reversed, and poises for the purpose of making arithmetical or other calculations, and in certain parts and details and combinations of the same, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a vertical lfront elevation of a scale embodying my invention, the front of the cap 1.8 being removed. Fig. 2 is an end elevation of the same, the side of the base 1 being removed to show the levers and connections. Fig. 3 is a perspective view of the levers, the vertical frame, the carriage-track 53, and the shelf-lever 71. Fig. 4, Sheet 2, is an enlargement of the carriage 61 ,-its track or rail 53, and the price bar or lever in elevation and in vertical cross-section.` Fig. 5, Sheet 1,is a view of the face and edge of a series of weights adapted to the invention. 5a shows the face, and 5b the edge, of a weight of the lowest capacity, being equivalent to the capacity of the scale upon the beam. 5c shows the face,

and 5d the edge, oi a weight of double that capacity. 5e and 5f. show a weight four times the capacity of 5a, and 5g and 5h one of eight times the capacity of 5a. Fig. 6 is a view of the computing-bar 22, Fig. 7 a like view of the weighing and calculating bar 33. Fig. 8 is a like view of the price bar orlever 60. Figs. 9, 10, and 11 are illustrations of the various sliding poises of the weighing and computing beams. Fig. 12 is a front elevation of an alternative construction. Fig. 13 is an end view of the track-bar and carriage shown in Fig. 4. Fig. 14 is a projection of a portion of the price bar or lever 60 enlarged. Fig. 15 is an end view or section of Fig. 14.

Like figures of reference in the several illustrations indicate like parts.

I have illustrated an ordinary type of "platform counter-scale in which wi thin the base 1 are suspended by the pivots 6 6al a long lever 2 and similarly suspended by the pivots 12 12L a short lever 3, which are centrally connected by a link 10, encircling the pivot 8 of the lever 2 and the pivot 9 of the lever 3.- Supported upon the pivots 7 7 a of the long lever 2 and the pivots 11 11d of the short lever 3 is a subbase or spider 80, upon which a plate or platform 81 rests and forms aload-receiver. The spider 8O and the plate S 1 may be integral, if desired. the long lever 2 is extended, as illustrated in Fig. 3, and its two opposite extremities are fitted with nose-pivots or iramed pivots 16 16a, which are held in place thereon by the bolts 14 14a, which bolts provide for adjustment and alinement of said nose-pivots 1.6 16L in relation to the supporting-pivots 6 6zl of ,the lever 2 upon the base 1, and superposed above the nose-pivots 16 16l are counterpart columns 17 16a, upon which an oblong cap 18 Y is mounted. Centrally within the cap 1S a beam-stand 19 is made fast, and at the righthand end of said cap are 'fitted a support 56ior the price-bar 60 and a bar 501for the support of the link 50. A shelf-lever 71. is supported horizontally within the cap 18 by its pivot 51 within the link 50, and upon its central pivot 4Q is suspended the vertical frame 48, having its lower ends connected with the levers 2 3 by means of the hooks 15 151, within which the nose-pivots 16 16a rest. The upper portion of the frame 48 has its ends divided, so that the shelf-lever 71 and the price-bar 6() may have iree motion in vertical alinement with the nose-pivots 16 16a. At the top of said Jframe 48 and in horizontal and vertical The front end oi:v

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alinem'ent with said nose-pivots 16 16a is fitted the bar 53, which forms a track upon which the fulcrum-carriage 61 may be moved from end to end. Upon the support 56 the pivot 55 of the price-bar 60 is seated within a proper bearing, and said bar 60 extends in alinement with and below the bar 53. Upon the beam-stand 19 above the bar 53 a weighing-beam 32 is seated by its central fulcrumpivot,and equidistant from and upon each sid e of said central pivot arefitted the point-pivots 38 40, provided with the loops 39 41 and the pendants or Weight-poises 43 44. Mounted upon the beam 32 in alinement with and above said beam is a bar 33, having two series of numbered spaces, whereof one reads from right to left and the other series reads from left to right, each series being fitted with a sliding poise, the one poise being adapted to indicate pounds and fractions upon its proper series of spaces and the other poise being adapted to indicate units and fractions thereof upon its proper series of indications. At an approved point on the beam 32 a pivot 46 is fitted in proper alinement with the other pivots of said beam and is provided with the loop 47, and the shelf-lever 71 is connected to the beam by means of hook-loop 45, which embraces the pivot 52 of said shelf-lever 71 and is hooked upon the loop 47. A balanceball 58 upon the beam 32 provides means for close adjustment in balance, and when balanced the beam 32 may be used in the ordinary method of weighing scales, a fixed weight, as 91, Fig. 5, placed upon the'pendant 43 balancing five pounds upon the platform 81, and if the weight be removed from the platform 81 and a second weight 91 be placed upon the pendant 44 the scale will still remain in balance. Seated within proper bearings by its central pivot and above the weighing-beam 32 is a computing or value beam 20, having equidistant from and in alinement with said central pivot at either end the point-pivots 27 28. Upon the pointivot 27 is hung a point-loop 29, and suspended therefrom is a pendantpoise 42, while from the opposite pivot 28 is hung a like point-loop 30, and the value-beam 2O is connected with the price-bar 60 by means of a loop-hook 31, the lower end of which embraces the pivot 54 of the price-bar 60 and the upper end hooks into the loop 30 of the value-beam 20. A balance-ball 21 is fitted upon the beam 20, and above said beam and parallel therewith is mounted a value-bar 22, fitted with a sliding poise 26, adapted to indicate upon one or more parallel scales of indicating spaces upon said bar.

Upon the carriage track or bar 53 is fitted a carriage 61, adapted to move freely upon said bar and fitted with a knife-edge fulcrum 62, which may be raised or lowered by the corresponding movement of the handle 70. A clamp or lock 67 is moved by said handle simultaneously with the fulcrum 62, but in the opposite direction, so that when the fulcrum 62 is depressed into contact with the price-bar 60 the lock 67 is brought into contact with the track-bar 53 and the carriage held in place thereon, and when the fulcrum 62 is raised from its seat upon the price-bar 60 the lock 67 is released from contact with the track-bar 53, and the carriage 61 may be moved in either direction upon said trackbar 53, and that when the knife-edge 62 is locked down within the desired notch of the price-bar 60 the movement of the track-bar 53 is conveyed to said price-lever at the exact multiple of leverage desired without possibility of shift or error.

It will be seen that the general structure so far described diers from the ordinary types of so-called computing-scales7 in that, Jrst, the long lever 2 extends to the front with two ends, as 14 14a, and that its supporting-pivots 6 6a and its draft-pivots 16 16t form practically the corners of a rectangle; second, that the ordinary steelyard-rod of such scales is replaced by the vertically-supported frame 48; third, that said frame 48 is fiexibly connected with said rectangularly-pivoted lever 2 by means of the hooks 15 15a; fourth, that said vertical frame 48 is fitted with a horizontal track bar 53, provided with a movable carriage 61, bearing a knife-edge fulcrum 62 fifth, that a normally independently liberating price-bar 60, parallel with the track-bar 53 and having its one end pivotally supported upon the cap 18 and its other end flexibly connected with the valuebeam 20, is adapted to be positively engaged with the weighing mechanism at any desired multiple of leverage by means of the fulcrum 62 or entirelydisengaged therefrom; sixth, that the weighing-beam 32 has its bar 33 provided with two parallel series of spaces, the upper series being subdivided to indicate pounds and fractions thereof and fitted with a poise to indicate thereon and the lower series spaced in decimal subdivisions and fitted with a poise of like gravity to indicate upon unit-spaces of length similar to the poundspaces, and that said beam is provided with oppositely-suspended counterpart pendants adapted to indicate upon the right hand 43 the equivalent of the weight upon the platform 81 and upon the left hand 44 the equivalent of a weight or number not placed upon the platform 81 or any imaginary or hypothetical number or quantity.

In the illustrations a scale is shown wherein the levers 2 3 have in themselves a multiple of eight to one. The shelf-lever 71 increases this by two to one and is connected to the weighing-beam 32 at its pivot 46 at a multiple of one and one-fourth to one, so that at the points 38 40 the Weighing-beam 32 has a multiple of twenty, While the leverage exerted upon the track-bar 53 is constantly eight to IIO one. One pound therefore upon the pendant 43 will balance twenty pounds upon the platform 8l and one pound or one unit upon the pendant 44 will be equivalent to the number twenty of pounds or units, as will be hereinafter explained.

The price-bar 60, as illustrated in Figs. 4 and 8, is theoretically divided into one hundred spaces, of which the pivot 55 would be zero and the pivot 54 would at its knife-edge indicate the one hundredth space, and so many of these spaces as are desired to use are notched for the reception of the knife-edge 62, so that when a load upon the platform 81 depresses the track-bar 53 the price-bar 60 is depressed from its iixed pivot 55 and the action is transmitted to the value-beam 2O at the multiple of leverage indicated by the point on the price-bar by the contact of the fulcrum 62. In coordination with the notches upon the upper edge of the price-bar 60 there are arranged three parallel series of marks, those of the upper series 63 indicating increments of one-fourth cent each those of the second series indicating one cent each or other approved arrangement known to the art, and the lower series indicating values per bushel of sixty pounds at increments of six cents each or other numbers for the purpose of computation, as interest-days. The lower edge of the track-bar 53 I preier to notch in correspondence with the notches in the price-bar 60, and the carriage 61 comprises a body adapted to be moved easily longitudinally of the bar 53, said body having at either end upon its front side brackets 66 66a, into which the shaft of the handle 70 is journaled. The body 6l is cut out vertically upon both front and rear at points equidistant from each end to form seats, in which the tulcrum 62 and the lock 67 are adapted to be moved vertically. The seat or groove for the lock 67 is cut away across the bottom of the body 6l to allow the lock to be impinged within one of the notches in track-bar 53 when said lock 67 is raised. Both fulcrum 62 and lock 67 are of rectangular-frame form with open tops and fit within their respective seats, as shown by the dotted lines in the sectional and end view Fig. 4, the fulcrum 62 having its lower end finished as a knife-edge adapted to contact with the bottom of the notches on the top of the price-bar 60 and the lock 67 having the upper side of its lower end fitted to fill the spaces on the lower side of the track-bar 53 within the carriage 6 l. Upon the lower front side of the fulcrum 62 a projecting bracket connects said Julcrum with the shaft of the handle 70 by means of the link 68, which has its upper end connected to said shaft by a pin at a point below and eccentric with its ournals. The lock 67 has on its front and near its top a similar projecting bracket, and

a link 69 connects said lock with the shaft of handle 70 at a point above and eccentric to its journals, so that whenthe handle 70 is rotated downwardly about its ournals the fulcrum 62 is forced downwardly and the lock 67 is drawn upwardly by the one motion and the carriage 61 held in place upon the trackbar 53, whereby the probability of slip of the lever in moving is eliminated and mechanical accuracy insured.

The weighing-beam 32 is provided with the pendants 43 44, which have their bars marked with a series of figures denoting the increments of weights placed thereon, and the weights 91 92 93 94 are constructed of a thickness to register with this vertical series of increments, as weight 91 would upon either pendant expose the figure 5 at its upper edge upon the pendent-bar, two such weights would leave the igure 10 exposed, as also would one weight 92, and anyother combination of weights will have exposed at the upper edge of the upper weight the figure indicating the sum of all the weights upon that pendant. The scale-bar 33 of the beam 32 is for convenience attached thereto at vertical projections equidistant from its center, although it may be attached in iront of or may be made integral with said beam 32. In any case it is spaced and marked as shown in Fig. 7, which illustrates the back or obverse side of the scale-bar 33. The upper series of spaces, as shown, are divided and marked to represent iive pounds in equal increments of one pound each, and each one-pound division is subdivided into sixteen spaces, each of which represents one ounce. A sliding poise 36 is fitted to be moved longitudinally upon said scale 37 and to indicate thereon in the ordinary way. A lower series is constructed, as 35, Fig. 7, and divided into five spaces, each of equal length with the pound-spaces of series 37, and `each such spaceis subdivided in decimal submultiples. As illustrated, they are divided into ten subspaces, each of which represents one-tenth or ten one-hundredths of the whole space. A slidable poise 34, Fig. 1l, fitted to be moved upon the bar 33, is moved along said scale series 35 and indicates units of quantity and other values, either alone or in conjunction with the weights upon the pendant 44. The computing or value beam 2() has its value-bar 22 made with three horizontally-parallel scales, which are spaced and numbered to coordinate with the three parallel scales of the price-bar 60. Thus the upper scale 23 indicates values when the price is xed by the fulcrum 62 on the price series 63 of the pricebar 60, the middle scale 24 indicates the values when the price is 'fixed by said fulcrum, as on the price series 64 on price-bar 60, and the lower scale 25 indicates values when the price is to be read on the lower series 65 on price-bar 60. The pendantpoise 42 is provided with three vertical scales of iigures, which continue the horizontal IOO IOS

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scales 23 24 25 and in which each ascending space indicates an increment equal to the value of its corresponding scale. rlhus the value capacity of the scale 24 is two dollars and the middle series of the pendant 42 is in ascending increments of two dollars each. The value capacity of the scale 25-is twenty cents and the outer series on the pendant 42 is in increments of twenty cents each. The Weights, Fig. 5, are made and marked to indicate upon these vertical scales, as, Fig. 5, 91 would indicate five pounds upon pendant 43, iive units of weight or other value upon pendant 44, and either one-half dollar, two dollars, or twenty cents upon pendant 42, accordingly as the price had been fixed upon the corresponding series on the price-bar. 60. It will be seen that in the structure shown in Figs. 1 and 2 the weighing beam 32, the vertical frame 48, and track-bar 53, with its carriage 61, sustain through the shelf-lever 71 the normal operating parts of the scale, and that the bar 53 being parallel with the fulcrums of the levers which bear the weight the carriage 61 is moved to any point of the track-bar 53 without disturbing the u balanceH of the structure, and that the pendants 43 and 44 take part in the balancing of the beam 32 and its connections.

The value-beam 20 and the price-bar 60, which is iiexibly connected thereto by the loop-hook 31, is balanced independently of any other element by means of the pendant 42 and balance-ball 21. Attached to the ends of the cap 18 are vertical beam-stops 57 57a, and pins, as at 59, Fig. 1, in the ends of the beams 20 32 pass through openings in said beam-stops and limit the librating movement of the beams when in operation. The various slidable poises are adapted to be read upon their several horizontal scales. Thus poise 26 has three reading-points, each of which indicates upon one only of the scales 23 24 25 on the value-bar22, and each of the several scales may be finished in an individual color, said color being also continued in the vertical scales of the pendants and upon the pointers of the poises 26 34 36, as well as on the hori- Zontal series 63 64 65 of the price-bar 60, it being necessary that said distinguishing colors shall correspond upon price-bar, beam, and pendant in each instance.

1f it be desired to weigh an article in the ordinary course of business, the article is placed upon the platform 81 and the poise 36 moved out upon the scale 37 of the weighing-beam 32 until abalance is obtained, which will be shown by the pin 59 descending to the center of its opening in the beam-stop 57. 1f the article should be of greater weight than can be indicated upon scale 37, weights, Fig. 5, are placed upon the pendant 43 to nearly balance the weight upon the platform 81, and

the poise 36 is moved out to obtain a balance,

as before, the total being read from the upper edge of the upper weight on pendant 43, to which figure the figures indicated by poise 36 are added, giving the total weight. If it is desired to weigh such an article in money value, the carriage 61 is moved along the carriage track-bar 53 until the fulcrum 62 is above the desired price upon the price-bar 60. The handle 70 is there depressed and the fulcrum 62 is seated within the notch indicating the desired price. Simultaneously the lock 67 is raised until the inner edge of its crossbar is seated within the corresponding notch in the lower edge of the track-bar 53, and the fulcrum-carriage is locked in place. Assuming that the desired price is ten cents per pound, that the fulcrum is locked at the price, and that the weight upon the platform 81 is four and one-half pounds, then the levers 2 3 are depressed by said weight and said depression is conveyed to the price-bar through the fulcrum 62. The operator nowmoves the poise 26 out upon the bar 22 until it indicates forty-five cents upon scale 23, at which point the beam balances, and the operation is complete. lf the desired price is forty cents per pound, the fulcrum 62 is locked in the same notch, the prices in series 64 on pricebar 60 being four times the amount of those in series 63 and the poise 26 being moved out to indicate one dollar and eighty cents on scale 24 the beam will be in balance and the operation completed. Should the article p aced upon the platform 81 be of a character sold by the bushel of sixty pounds and the price per bushel is two dollars and forty cents, the fulcrum 62 willremain in the same notch as in the other transactions, because that price upon series 65 on the price-bar corresponds with the ten-cent price and forty-cent price of the upper series. Should the weight of the article upon the platform be four and onehalf pounds, as before, then when poise 26 is moved out to the figure 18 on the scale 25 the scale will balance and eighteen cents will be the value of the article being weighed.v

When in any similar transaction the weight upon the platform 81 exceeds the capacity in value of the scales on bar 22, weights are placed upon the pendant 42 and the fractional excess is indicated upon the bar 22, in every case the total being read from the proper vertical and horizontal columns or scales in the examples given, the price-bar being depressed by the load upon the track-bar in the ordinary manner of weighing mechanisms.

lf it is desired to learn the amount of interest at six per cent. upon, say, forty-three dollars and iifty cents for two hundred and forty days, the fulcrum is locked at the figure 240 on series 65 of the price-bar 60, weights IOC IIO

ant 44, and the poise 34 is moved out on the scale 35 to indicate three and fifty one-hundredths units, weights sufficient to indicate one hundred and sixty cents on the outer column of pendant 42 are placed thereon, and poise 26 is moved out to the figure 14 on scale 25 oi' the bar 22, at which point the beam 20 balances, and the answer is obtained by adding the fourteen cents of the beam to the dollar and sixty cents of the pendant. If it is desired to ascertain the value of, say, two thousand one hundred and ninety articles at, say, seventeen and one-half cents per hundred, weights to indicate twenty on the pendant 44 are placed thereon, each unit-weight representing one hundred parts, the unitspoise 34 is moved out upon the scale 35 oi bar 33 until it indicates an additional unit and eighty hundredths, the fulcrum 62 is locked into the notch indicating seventeen and one-half of series 63 on the price-bar 60, weights to indicate three and one-half dollars on the iirst column of the pendant 42 are placed thereon, and poise 26 is moved out upon scale 23 of bar 22 until it balances at thirty-one and one-half cents, which being added to the three and one-half dollars of the pendant 42 totals three dollars eighty-one and one-half cents as the value required, in these examples the operation of the mechanism being the reverse of the normal weighin process in that the track-bar is lifted by the price bar or lever when a balance is obtained.

I have shown in Fig. 12 an alternative construction oi the same type as hereinbefore described, in which the change is, first, in that the weighing-beam 32 and the value-beam 20 are balanced without the use of pendants 42 43 44 and I provide two counterpart pendants, as shown in 82 82a, Fig. 12, which are sealed to the eXact weight of the weight of the lowest denomination 91, Fig. 5. Upon one side this pendant is provided with an ascending scale of numbers in increments of five, representing the pounds or units, as in 44, Fig. 1, and illustrated at 82a. On the other side of the pendant are the three vertical columns corresponding with the three horizontal scales on the bar 22, as shown at 82, Fig. 12. The operation of the scale within the capacity of its beams and sliding poises would be precisely as already described; but in any operation requiring greater capacity one of the poises 82 would be hung on its proper loop, as, if weighing, upon loop 39, or, in calculating, on loop 41, in both cases with the pounds or units side S2il to the iront. If the operation is on the computing-beam 20, then the poise is hung Jfrom loop 29 with the computing-columns to the front, as in 82, Fig. 12. The pendants being themselves a weight of known value and other weights being added thereto, the vertical columns on said pendants are made to read in totals including the value of said pendant upon all the vertical columns thereon. The advantage of this form is a reduction in the number oi' parts, an interchangeability of pendants, whereby the scale is prevented from being thrown out of balance by carelessly misplacing the pendants thereon, and a greater sensitiveness of action under light operations because of the lesser weights to be moved.

It will be understood that the invention may be embodied in a form wherein the total capacity of the scale shall be indicated on the several scales of the weighing and computing beams without requiring the pendants and loose weights and that it may be constructed and operated as a computing and weighing machine without the reversed scale of the weighing-beam and without the point-pendant at the load end of said beam.

I am aware of the patent to B. WV. Ogburn, No. 80,003, wherein is shown a track-bar parallel with the fulcrum of a scale-lever and a fulcrum balanced with and movable along said bar interposed between said bar and an indicating-beam. I do not, therefore, claim those features broadly. I am also aware that vertically-supported frames have been used as connecting means between the levers and beams of weighing-machines, but heretofore such devices have Jfailed to provide means for a positive connection at any desired invariable multiple of leverage between the weighing and computing elements, and the resulting probable error has rendered them useless or of limited use. I do not, therefore, claim a vertical approximately rectangular steelyardframe broadly.

l/Vhat I claim ish l. In a computing-scale, arectangularlypivoted weight-supporting-lever system, a vertically-supported frame llexibly connected with the' outer pivots of said lever system, a graduated price-bar fulcrumed at one end outside of and extending across and within said vertical frame, a weighing-beam flexibly connected to said price-bar at its free end, and a means oil positively connecting said price-bar and vertical frame at any point between the ends of said price-bar as shown and described.

2. In a computing-scale a weight-supporting-lever system having its outer pivots in practically rectangular alinement with its 'fulcrum-pivots, a practically-rectangular steelyard-frame vertically supported upon the outer pivots of said lever system, and a horizontal equal-notched track-bar as its upper member ;`a graduated price-bar fulcrumed at its one end outside of and extending across and within said vertical 'frame parallel to and notched coincident with said track-bar, an inverted scale weighing-beam connected to and operating in unison with said vertical frame, a computing-beam ilexibly connected with the before-named price-barwithin but IOO IIO

independent of said vertical frame, and a means of transmitting the movement of the said frame at a iXed point of its track-bar to a Xed point upon said price-bar as shown and described.

3. In a computing-scale having ahorizontally-positioned equal notched track bar member between its weight-supporting levers and its weighing-beam and moving in unison therewith, a graduated and notched pricebar fulcrumed at one end beyond said trackbar member, its notched body extending parallel to and in register with said track-bar member, and its free end connected with a superposed value-beam and normally inde-v pendent of said track-bar member, and a movable knife-edge connection upon the track-bar member adapted to be positivelyT locked at any point thereon and positively contacted in any desired notch upon said price-bar, as shown and described.

4. In a computing-scale, weight-supporting levers connected with a weighing-beam having a horizontally-positioned verticallymovable notched track-bar, positively operated by the Weighing mechanism, a notched price-bar parallel with and below said trackbar, fulcrumed at its one end, and connected at its other end to a computing-beam beyond the said track-bar, and normally independent thereof, and a carriage having a journaled handle linked in opposite directions tov two vertically-movable frames whereof one is knife-edged eXteriorly to `be impinged within the notches of the price-bar, and one is fitted to lock within the notches of the track-bar when said journaled handle is depressed as shown and described.

5. In a scale having weight-supporting levers connected with a superposed beam, a horizontally positioned vertically movable equal-notched bar member moving in unison with the weighing mechanism, and a valuebeam having a price-bar suspended below and notched in register with said horizontal bar member and in normal balance independent thereof, a carriage comprising a body fitted about and adapted to be moved longitudinally upon said horizontal bar members, a handle journaled upon said body and oppositely linked to two vertically-movable frames, slidably seated within said body, one of said frames being fitted exteriorly as a knife-edge fulcrum to seat within the notches of the price-bar and the other to fit within the notches of the horizontal bar member simultaneously by the depression of the handle, and to be simultaneously released by its elevation as shown and described. Y

6. In acomputing-scale, avalue-beam having a pivotally-suspended price-bar graduated and notched in equal spaces from its fulcrum toward its suspending pivot and in normal independent balance, a horizontally-positioned vertically-movable member of the weighing mechanism above and havingV its lower edge notched in register with the upper edge of said price-bar, weight-supporting levers and indicating-beam connected with said horizontal bar member in normal balance and a means of transmitting the movement of the one bar to the other bar without lost motion or change of leverage as shown and described.

7. In a computing-scale, a weighing-beam having an inverted scale representing units of quantity and decimal subdivisions thereof, a horizontal track-bar member of the steelyard connection between said beam and the weight-supporting levers, a computing-beam having a pivotally-suspended graduated and notched price-bar parallel with and below said track-bar member, and provided with a scale cooperating with its notches based upon sixty pounds at a given price and indicating multiples and submultiples of said price, a cooperating scale upon the value-beam, and a knife-edge fulcrum adapted to be locked at any point up on said track-bar member and to connect with said price-bar, whereby the movement of the value-beam may be transmitted to the weighing-beam and scale-levers as shown and described.

8. In a computing-scale an equal spaced graduated and notched price-bar fulcrumed on the scale-frame, a scale of values registering with said graduations, a superposed value-beam iieXibly connected to and having a graduated scale cooperating with the pricebar scale, a poise adapted to indicate upon the value-beam, a reversely-numbered weighing-beam connected with the scale-levers, a poise adapted to indicate upon said beam and a means of transmitting the movement of the value-beam to the weighing mechanism, or of the weighing-beam to the valuedetermining beam as shown and described.

9. In a computing-scale, an equal spaced and notched price-bar supported at its one end upon the scale-frame and at its other end suspended from a value-beam superposed on said frame and provided with a scale of numbers based upon an arbitrary valuation of the scale-unit, a corresponding scale upon the value-beam, a poise on said value-beam adapted to indicate upon said scale, apendant upon said value-beam having a vertical column of values corresponding with the arbitrary scale of the value-beam and adapted to indicate the value of loose weights placed thereon, and a means of connecting the beforenamed price-bar with the weighing mechanism as shown and described.

10. In a computing-scale, a weighing mechanism having a horizontally-positioned vertically-moving notched member, an inverted scale weighing-beam, a computing mechanism having a price-bar notched in register with the horizontal member of the weighing mechanism and provided with a scale cop- IOO IIO

erating with the inverted weighing-scale and registering with the before-named notches, a value-beam having a scale cooperating with the said price-bar scale, and a poise adapted to indicate on said value-beam, a point-pendant having a vertical column of figures indicating increments of said value-scale, weights adapted to indicate upon said vertical column and means of transmiting the motion of the computing to the weighing mechanism or vice versa as shown and described.

11. In a scale of the described class, a computing beam having a flexibly suspended price-bar fulcrumed parallel therewith upon the scale-frame and in normal balance independently of the weighing mechanism, corresponding price-scales on the price-bar and value-scales on the computing-beam, a horizontally-positioned vertically-movable member of the weighing mechanism parallel with said price-bar and a means, on said horizontal member, of connecting it with said pricebar in exact relationship as shown and described.

12. In a scale as described, a weighingbeam provided with two parallel scales of equal divisions, one reading from the load toward the point, subdivided into spaces indicating fractions of Weight, and fitted with a poise adapted to indicate thereon the weight placed upon the load-carrier or platform 3 the other scale subdivided into decimal submultiples, reading from the point toward the load, and fitted with a poise adapted to indicate thereon the number of units or things given as one factor in a problem, a computing mechanism adapted to coperate with said weighing-beam and a means of transmitting motion from the computing-beam to the weighing-beam or from the weighing-beam to the computing-beam as shown and described. y

13. A scale comprising a normallyT balanced weighing mechanism adapted to indicate weights placed upon its weight-receiver, or weights or numbers not placed thereon, an independently-balanced computing mechanism, adapted to indicate values at various prices or multiples, and a means for connecting and disconnecting the two mechanisms as shown and described.

14. In a scale having a computing mechanism independently balanced and adapted to be connected, lat various multiples of leverage, with the weighing mechanism; a horizontally-positioned bar interposed between and connected with the weight-supporting levers and weight-indicating beam and positively moved in a vertical line by said weighing mechanism and provided with a longitudinally-movable, vertically-adjustable positively-lockable fulcrum for connecting the two mechanisms, as shown and described.

15. A scale having a normally balanced weighing mechanism with a beam fitted with proper scales and poises adapted to indicate the amount of load upon its weight-receiver, and also to indicate and exemplify a load not upon the weight-receiver, an independentlybalanced computing mechanism having a price-bar provided with a plurality of price series of different multiples, and a beam provided with a plurality of value-scales corresponding with the price series of the price-bar, a poise adapted to indicate on each of the several differential scales, and a means of connecting the weighing mechanism to the computing mechanism at any desired price or multiple of leverage as shown and described.

16. In a scale as described, a normally balanced weighing mechanism having a beam spaced and marked in two oppositely-increasing scales with poises, whereof one indicates the amount of a load upon the platform, and the other represents a load thereon, oppositely-placed point counterpart pendants on said beam to increase its capacity, an independentlybalanced computing mechanism comprising a horizontal fulcrumed pricebar having a plurality of price series of diiferent multiples, a value-beam having a plurality of value scales, corresponding with said price-bar, and a poise adapted to indicate upon each of said value-scales, a pointpendant having a plurality of vertical scales in correspondence with said price series and value scales, weights adapted to indicate upon said pendant, a horizontally-positioned bar member of said weighing mechanism parallel with the before-named price-bar, and a fulcrum adapted to be moved longitudinally thereon and to be depressed into contact with said price-bar as shown and described.

17. In a computing-scale, a weighing mechanism with a normally balanced beam having reversely-positioned weighing-scales and poises, and oppositely-suspended point-loops, and an independently-balanced computing mechanism comprising a value-beam and a price-bar suspended therefrom provided with two or more price and value scales adapted to correspond each with the other and to be indicated upon by a poise upon the value-scales, and by a fulcrum upon the price-scales and an attachable and detachable pendant-poise adjusted to indicate a weight or value equal to the total beam capacity of either Weighing or computing beam, and adapted to receive additional loose weights as shown and described.

18. In a scale the combination with the inverted scale-beam thereof, a pendant-poise adapted to hang from a reversely-placed point-loop upon and to indicate the total capacity of said beam, and having vertical columns of figures corresponding with the scales on said beam, whereby the amount of loose weights placed thereon, inclusive of said pendant,- is indicated upon said pendant as shown and described.

IOO

IIO

Io the opposite lower ends of said vertical frame and the opposite outer pivots of said loadsupporting lever, as shown and described.

In testimony whereof I have signed my name to this speoioation in the presence of two subscribing witnesses.

JOHN W. CULMER.

Witnesses:

ERNEST SCHWARTZ, HENRY H. LUsTIG.

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