US1147259A - Weighing device. - Google Patents

Description

S. T. NEELEY.

WEIGHING DEVICE.

APPLICATION FILED MAY 8, 1914.

Patented July 20, 1915;

COLUMBIA FLANMRAPH 50., WASHINGTON, n. c.

SAMUEL T. NEELEY, 0F CHARLIE, TEXAS.

WEIGHING DEVICE.

Specification of Letters Patent.

Patented July 20, 1915.

Application filed May 8, 1914. Serial No. 837,283.

To all whom it may concern:

Be it known that I, SAMUEL T. NEELEY, a citizen of the United States, residing at Charlie, in the county of Clay and State of Texas, have invented certain new and useful Improvements in Weighing Devices, of which the following is a specification.

This invention relates to improvements 1n weighing devices by means of which the weights of various articles are automatically added and the total weight of the various articles thus obtained.

The simplicity of this device is evident in that it comprises so few working parts and is therefore inexpensive to manufacture and not liable to get out of order.

In many cases it is desirable to ascertain the total weight of a plurality of articles, and in reading the figures on an ordinary scale, writing them down and subsequently adding them to obtain the total, the liability to error is evident, an inaccuracy which this device entirely eliminates.

With the above and other objects in view, the invention consists in the novel construction, arrangement and combination of parts as will be hereinafter specifically described, claimed and illustrated in the accompanying drawings, in which,

Figure 1 represents a front elevation of the device, showing the front of the casing removed, to show the interior mechanism, Fig. 2 represents a sectional view taken on the line 22 of Fig. 1, Fig. 3 represents a vertical sectional view on the line 3-3 of Fig. 1.

Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 1 represents a casing or frame in the center of which is located a vertically disposed coil spring 2 adjustably supported at its upper end in the casing by a wing nut 3 whereby the position of the spring relative to the frame may be varied as desired, as for compensating for the reduction in the tension of the spring due to extensive use. The lower end of the spring is attached to a vertically disposed beam 4 having a plurality of laterally projecting teeth 5 meshing with the pinion 6 keyed on a shaft 7 journaled in suitable bearings 8 fixed interiorly of the casing 1. A guide rod 25 is secured vertically to the upper end of the beam 4 and is positioned within the spring to prevent lateral displacement of thelatter.

A brace 9 is secured adjacent the upper end of the beam 1 and is fastened centrally to a rod 10. A top brace 12 is slidably mounted on the guide rod 11 and is connected with the lower brace 9 by the rod 10. The opposite end of the top brace 12 carries a de pending rod 13 extended parallel with the rod 10 and carrying a piston 14: at its lower end working within a cylinder 15 secured to the frame orcasing l to retard or cushion the action of the parts of the mechanism. A suitable air port 16 is preferably formed in the lower end of the cylinder 15 to permit air to enter and leave the cylinder.

An indicating wheel 20 is rotatably mounted on the shaft 7 in front of and spaced from the pinion 6. The wheel 20 is formed with a plurality of ratchet teeth adapted to cooperate with the gravity pawl 24: to lock the wheel against rotation in one direction. A small ratchet wheel A0 is secured to one face of the wheel 20 between the latter and the pinions 6 and is adapted to cooperate with the spring actuated pawl 41 carried by the adjacent face of the pinions 6 for rotating the wheels 20 and 40 with the pinions 6 when the latter rotates in the direction of the arrow indicated in Fig. 1.

Numerals are placed upon the outer face of the indicating wheel 20 corresponding to the maximum capacity of the scale, and the numerals are visible through suitable transparent plates 23 in the front of the casing. A second shaft 28 is rotatably mounted in suitable bearings 29 secured in the casing 1 and supports an indicating wheel 27 disposed in a vertical plane between the pinion 6 and wheel 20 and formed with a plurality of gear teeth adapted to be engaged at each rotation of the wheel 20 by a stud 26 carried by said wheel to rotate the indicating wheel 27 a predetermined part of a revolution. The peripheral gear teeth of the wheel 27 are adapted to cooperate With a gravity pawl 30 to prevent said wheel from rotating in a direction reverse to that indicated by arrows in Fig. 1. The outer face of the wheel 27 is provided with suitable figures which are visible from the exterior of the casing indicating the number of revolutions of the wheel 20, thus if the capacity of the scale is 100 pounds the wheel 20 will be provided with markings graduating from 0 to 100, and for every complete revolution of said wheel the wheel 27 is rotated one degree by the engagement of the stud 26 with the gear teeth, and the figures on this wheel are so arranged as to indicate the number of revolutions accomplished by the wheel 20.

What I claim is A weighing device including a casing, a spring secured Within said casing, a beam terminally secured to the spring and having a plurality of rack teeth, a gear rotatably mounted within said casing and meshing with the teeth on said beam, an indicating wheel mounted within the casing, means connecting said gear wheel with the indicating wheel to operate the said indicating wheel upon downward movement of the beam,

means secured within said casing for controlling the reverse rotation of the indicating wheel, a guide rod secured interiorly of the casing, a brace slidably mounted on the guide rod and secured thereto adjacent the upper extremity of the beam and disposed intermediate the spring and beam, a top brace slidably mounted on the upper extremity of said guide rod, a rod connecting said first mentioned brace with the top brace, a depending rod extending parallel with the guide rod and secured at its upper terminal to the opposite end of said top brace, a cylinder secured within the lower part of the casing, a piston carried by said depending rod and operating within said cylinder for retarding the action of the device and pneumatically controlling the downward movement of said beam.

In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL T. NEELEY.

lVitnesses:

R. J ONES, F. PooL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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