US770804A - Computing-scale. - Google Patents

Description

PATENTED SEPT. 2'7, 1904.

A. B. HAYDEN. COMPUTING SCALE.

APPLICATION FILED JAN. 18, 1902.

2 SHEETS-SHEET l.

N0 MODEL.

i i u.

PATENTED SEPT. 2v, 1904.

A. B. HAYDEN. COMPUTING SCALE.

APPLICATION FILED JAN. 18. 1902.

2 SHEETS*SHEET 2.

N0 MODEL.

'UNITED STATES Patented September 27, 1904. v

PATENT OFFICE.,

AUSTIN B. HAYDEN. OF CHICAGO, ILLINOIS, ASSIGNOR TO COMPUTING SCALE COMPANY OF AMERICA, A CORPORATION OF NEW JERSEY.

COMPUTING-SCALE.

SPECIFICATION forming part of Letters Patent No. 770,804, dated September 27, 1904.

Application led January 18, 1902. Serial No. 90,234. (No model.)

T all whom] t 77mg/ concern.'

Be it known that I, AUSTIN B. HAYDEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Computing-Scales, of which the fol-r lowing is a specification.

My invention relates rparticularly to computing-scales of the spring-balance type- 1o such, for instance, as that described in my pending application, Serial No. 54,667, filed tion of the outer casing being' broken away;

Fig. 2, a vertical sectional view taken as indicated at line 2 of Fig. 3; Fig. 3, a horizontal section taken as indicated at line 3 of Fig. 2; Fig. 4, a broken horizontal section taken as indicated at line 4 of Fig. 2; and Figs. 5

and 6, vertical and horizontal detail sectional views illustrating the adjustment of a reference-pointer employed at the rear side of the scale, Fig. 6 being a section taken as indicated at'line 6 of Fig. 5.

3 5 A represents a non-rotatable casing constituting, in effect, a portion of a frame, said casing being supported by a member A, connected with a standard A2, and the latter is adapted to be mounted on a counter or base, as

40 usual.

A2 and the member A'vis formed by a hanger such as is usually employed for pendent scales. Thus an eye .is formed in the part A and a pin o1' bolt passing loosely through the eye con- 4 5 nects the two arms of a clip A, surrounding the standard AZ.

The letter B indicates a combined weight and value indicating cylinder fixed at its upper end to a spiral-equipped cylinder-rotat- The connection between the standard ing rod B, supported from av ball-bearing B2; 50 A3, an internal standard supported from a cross-head A", connected with a bolt A5, xedly secured to the bottom AG of the casing A; C,

a spring-supported load-actuated member or load-hanger; C, a U-shaped load-pan support connected with the member C; C2, aload-pan of usual form suspended from the member C', and C3 a rod-actuating member yieldingly connected with the member C.

The casing A comprises a cylindrical body c, preferably of sheet metal, and having front and rear sight-glasses a a2, respectively, a spider a3, bearing an upturned ball-cup ai, a top a5, fitting over the spider a3, the bottom A comprising members c6 al u8 and rods a, 65 connecting the member al with the spider a3 and provided with eyes um, connected by cotter-pins a with perforated lugs cl2, with which the member A is provided. The members c and a7 are preferably heavy to give 70 rigidity and strength to the casing as well as to bring the center of gravity low, while the member o8 is a thin covering conforming to the casing. The casing A is provided at its front side with a price-index uw, located on the casing beside the sight-opening and giving the prices per unit of weight, as indicated by the vertical row of numerals in Fig. 1. The casing is further provided with a plate a, crossing the sight-opening c and behind 8O which a reversely-arranged set of weight indications on the cylinder may be concealed, said indications being thus brought into position to be exposed through the rear sightopening, as will be readily understood. The sight-glass u' is provided with a vertical reference-line au. The sight-glass a2 at the rear side of the casing is a short glass which serves to permit the weight-indicating characters of the inner revoluble cylinder to be exposed to the view of the customer. There is provided thereat an adjustable reference-point al, carried by nut au, working' on a horizontallydisposed threaded rod uw, supported from the casing. The construction is such that when the rod als is turned the nut moves transversely 1n one direction or the other, accordlng to the direction 1n which the rod is turned.

The standard A3 comprises two vertical rods a, projecting upwardly from the cross-head A4 through suitable openings in the lower end of the casing A, and a top cross member a2. The member 42 supports springs 021, which are connected therewith in any usual manner and from which the member 'C is suspended. rlhe cross-head A4 has a central vertical perforation @22, which receives loosely the threaded stud or bolt A5, and said cross-head has a horizontal slot (L23, which receives a nut (ff, which screws on the bolt A5. A spring a2, confined between said nut and the lower wall of the slot w23, serves to force the cross-'head A4 downwardly and keep the upper wall of the slot L23 in close contact with the upper surface of the nut w24. Slots or perforations @26 (L27 in the vcross-head A4 and the lower cylinder end A6 receive the vertical members of the loadrpan supports C. A capra28 screws onto the vball-cup a4 and serves to inclose said ball-cup and hold the cover a5 in place.

The inner cylinder B comprises, preferably, a light sheet-metal cylindrical body I), provided at its lower `end with an inturned flange or strengthening-rib Z2' `and provided at its upper end with a spider '52, having a central hub which receives and is firmly fixed to the upper end of the rod B. The upp'er end of the rod B' is reduced in cross-section and passes freely through the cup and is equipped at its upper extremity with 'a cone 3 and lock-nut b4. The lower end of the rod B' has a socket b5, which receives a pin projecting upwardly from the head of the bolt A5.. It will be seen that the construction permits the rod B to be adjusted verticallyat the ballbearing, so that the cylinder B may have its rows of value-indicating `characters brought into horizontal `alinement with their respective price-index characters of the vouter casing. The cylinder B is provided circumferentially with horizontal rows 57 of value-indicating characters and with a horizontal row if of weight-indicating characters, the row bs being located immediately below the plate au.

In Fig. l a portion of the outer 'casing has caused to rotate in the direction indicated by the arrow in Fig. l.

The member C carries at one end a roller c, which engages the adjacent rod am, and at the other end a roller c', which engages the adjacent rod am and is journaled in a spring-projected yoke c2. rlhe yoke czmay be of any desired form; but that shown has a stem seatingin a socket in the memberC, and a spring confined in the socket behind the stem serves to projectthe yoke. Said member C carries upwardly-projecting studs or pins c3 c4, with the latter of which is connected, preferably by a head or nut, the laterally-projecting end of a plunger-stem @5,:working in a cylinder c6, the cylinder c being carried by `the rod-actuating member C3. The member()3 is guided by the rods 03 c4 and is provided with aroller c7, which engages a spiral cs, with which the rod B is provided, the spiral being held up against the rolle-r by its end bearings or by contact with the rear wall of the slot, which rear `wall may for convenience be formed by a cross-pin, as shown in section in Fig. 1. The plunger 05 is provided with a perforated disk 09 and a valve-disk 010, carried thereby and having its movement on the stem c5 limited by a pin cu.

When the member C is violently depressed by a load thrown ,upon the pan C2, the plunger works comparatively idly in its cylinder and the member C separates from the member'C3. In operation 'the member C3 settles down comparatively slowly and actuatesthe computingcylinder'. As it settles down it meets the member C, returning under thereaction of its springs, and the valve 01 then acts to oppose the upward movement of the member C, yso that a state rof equilibrium is quickly produced. The dash-pot and its piston -thus act as a governor to control the relative movements of the 'hanger and actuator.

The member C is provided with knife-edges c12 in Vertical 'alinement with the shaft of the roller 07, said knife-edges affording bearings for Athe member C3. These knife-edges serve to 4limit the downward movement lof the member C2, and a spring cli, surrounding the guideci below the laterally-projecting fend of the rod 05 serves to limit the upward movement of said member, the plunger c never comin-g in contact with the ends of its cylinder. If

desired, oil may be employed in the-cylinder c6 It is evident that the position -of the cylinder B with reference to Ithe index-'linea15 will be determined by the height of the 'roller c7., and it follows that by adjusting the height of the standard A3 by means of the nuit ai* the indicating-cylinder may be turned on its faxis 'to bring its vertically-disposed zero-line into alinement with the reference-line @15.

The manner of :adjustment and operation may be briefly summarized .as follows: The shaft B may vbe raised or lowered by .adjustment of the cone b3 and nut b4, thereby bringing the value-indicating rows of the cylinder into proper alinement with the corresponding characters of the price-index. The height of the spring-supportingstandard A3 may be adjusted by means of the nut a, thereby ybringing the zero-line of the computing-cylinder into alinement with the reference-line als of the casing A. When an'article to `be weighed is thrown upon the load-pan C2, it serves to violently depress the member C, while the member()3 is retarded by inertiaand friction. The member C3 then settles down under its As it settles -down it meets the member "C, ymoving IOO IIS

`own weightcand actuates the lcomrpu-ting-cylf -inder `without any shock to the par-ts.

upwardly under the reaction of its springs. The valve cio operates to permit the member C to separate quite freelyfrom the member C3, but opposes the upward movement of the member C with reference to the member (13.

It will be observed that the cylinder is suspended from its supporting-bearing, or, in other words, its supporting-bearing is located above its center of gravity, the pin Z2 serving simply to prevent lateral deflection of the cylinder and its axial shaft, and it is obvious that the beneficial results of such an arrangement of the parts will be secured even though the bearing were not located as high as' shown above the center of gravity, although the arrangement shown is preferred.

It is clear that many of the features of improvement described may be applied to other scales than the lparticular form herein shown. Hence no undue limitation is to be understood from the foregoing detailed description.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a spring-balance scale, the combination with the vertically-arranged rotary indicating-cylinder, an axial rod to which the cylinder is connected and a bearing in which said rod is journaled and from which it is suspended, located above the upper end of the cylinder, of a spring-suspended load-hanger located within the cylinder below the bearing and connections between the hanger and rod, whereby the cylinder is rotated in accordance with the movements of the hanger; substantially as described.

2. In aspring-balance scale,the combination with the vertically-arranged rotary indicating-cylinder and abearing in which it is journaled and from which it is suspended, located above the cylinder, of a spring-supporting frame projecting into said cylinder from the lower end, springs suspended from said fram e, a load-hanger supported by the springs and connections between said hanger and cylinder whereby the latter is rotated in accordance with the movement of the former; substantially as described.

3. In a spring-balance scale, the combination with the graduated indicating-cylinder, main frame in which it is journaled, a load-hanger and connections whereby the cylinder is rotated in accordance with the movements of the hanger, of a spring-supporting frame projecting below the main frame, adjusting mechanism located below the main frame and connecting the main and spring frames and springs suspended from the upper end of the springframe and supporting the load-hanger; substantially as described.

4. In a spring-balance scale, the combination with the graduated indicating-cylinder mounted on a vertical axis, a main frame having a cylinder-supporting bearing located above the center of gravity of the cylinder, a load-hanger and connections whereby the cylinder is rotated in accordance with the movements of the hanger, of a spring-supporting frame adjustably mounted on the main frame below the cylinder and projecting into the lower end of the cylinder, springs suspended from the Lipper end of the spring-frame and connected with the load hanger; substantially as described.

5. In a spring-balance scale,the combination with the indicator and the spring-suspended load-hanger, of an indicator-actuator supported on the load-hanger but free to move lindependently thereof, connections whereby the actuator imparts movement to the indicator corresponding to the movements of the load-hanger and a governor interposed between the actuator and load-hanger and controlling the relative ratio of movement of the hanger and actuator; substantially as described.

6. In a spring-balance scale` the combination with the indicator and the spring-suspended load-hanger, of an indicator-actuator supported on the load-hanger but free to move independently thereof, connections whereby the actuator imparts movements to the indicator corresponding to the movements of the load-hanger and a dash-pot and piston, connected the one with the hanger and the other with the actuator whereby the relative movement of said parts is controlled; substantially as described.

7. In aspring-balance scale, the combination with the indicator and the spring-suspended load-hanger, of an indicator-actuator, guides for the actuator mounted on the hanger, whereby said actuator is supported on but is free to move independently of the hanger, connections whereby the actuator imparts movements to the indicator corresponding to the movements of the hanger, and a dash-pot and piston working therein, one connected with the actuator andthe other with one of the actuator-guides; substantially as described.

8. In a computing-scale, the combination of a rotary computing-cylinder with a vertical axis, a spiral-equipped cylinder-actuating rod connected with said cylinder, ayieldingly-supported load-hanger, and a rod-actuating member yieldingly connected with said loadhanger and vertically reciprocable with relation thereto.

9. In a scale of the character described, the combination of a computing-cylinder, a spiralequipped vertical shaft fixed to rotate with said cylinder, a spring-supporting standard, a spring connected therewith, a load-actuated member connected with said spring, a rod-actuatingmember surmounting said load-actuated member and provided with spiral-engaging means, and cylinder and plunger connection between said rod-actuating member and said load-actuating member, for the purpose set forth.

l0. In a scale of the character described, the

IOO

combination of an outer casing, an inner vertically -arranged rotary cylinder, a spiralequipped shaft fixed to rotate with said cylinder, a stud projecting upwardly from the upper end of said cylinder, an antifrictionbearing between said stud and the upper end of said casing, said cylinder being vertically adjustable through the medium of said bearing, means for holding the lower end of the cylinder-shaft in position, a spring-supported load-actuated member, and rod actuating means connected with said load actuated member.

ll. In a scale of the character described, the combination of an outer casing provided with a vertical price-index, a computing-cylinder provided with horizontal value -indicating rows, a spiral-equipped rod serving to actuate said cylinder, a load-hanger, connections between the hanger and rod whereby the rod is rotated by the movement of the hanger, springs supporting said load-hanger, and a standard supporting said springs, and com-' prising rods located on opposite sides of said cylinder-shaft, a cross-head connecting the lower ends of said rods, and screw connection between the lower end of said casing and said cross-head whereby said standard-rods may be simultaneously adjusted, for the purpose set forth.

12. In ascale of the character described, the combination of an outer casing provided with lower ends of said rods, a central fixed screw connected with the lower end of said casing, and a nut on said screw working in the slot in said cross-head, whereby vertical adjustment of said standard-rods is effected, for the purpose set forth.

13. In a spring-balance scale the combination with a vertically arranged cylindrical casing, a bottom for said casing, a frame carried by said bottom and projecting' up into the casing, an indicator, counterbalance-springs suspended from the frame, aload-support projecting through the bottom and means whereby the movements of the load-support operate the indicator, of rods outside of the casing, and attached at their lower ends to the bottom and a suspension device connected with the upper ends of the rods.

AUSTIN B. HAYDEN. In presence of-a L. HEISLAR, ALBERT D. BACCI.

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