US1023821A - Pressure-gage. - Google Patents

Description

S. DINSMORE.

PRESSURE GAGE.

APPLICATION FILED MAR. 2, 1911.

' 1,023,821 Patented Apr. 23, 1912.

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$ 0 Attorneys Witnesses SAMUEL DINSMORE,

OF LYONS, KANSAS.

PRESSURE-GAGE.

Specification of Letters Patent.

Patented Apr. 23, 1912.

Application filed March 2, 1911. Serial No. 611,806.

To all whom it may concern Be it known that I, SAMUEL DINsMORE, a citizen of the United States, residing at Lyons, in the county of Rice and State of Kansas, have invented a new and useful Pressure-Gage, of which the following is a specification.

It is the object of the present invention to provide an improved pressure gage and the primary aim of the invention is to provide a gage of this type so constructed that it may be read from either side.

A further aim of the invention is to so construct the gage that the indications upon the two dial faces thereof will necessarily be identical.

The invention further contemplates the provision of a novel adjustable connection between the fluid-pressure actuated member of the gage and the indicator spindle actuating means, enabling the gage to be adjusted to compensate for wear and to suit varying conditions.

In the accompanying drawings,-Figure 1 is a face view of one side of the gage. Fig. 2 is a transverse sectional view, parts being shown in elevation. Fig. 3 is a sectional view on the line 33 of Fig. 2. Fig. 4C is a detail perspective view of the indicator spindles of the gage, and their related parts. Fig. 5 is a sectional view in detail illustrating the adjustable connection between the fluid pressure actuated member and the segments which actuate the indicator spindles.

In the drawings, the gage is illustrated as including a casing 5 of the ordinary form except that instead of a single dial it is provided with two, one indicated by the numeral 6 and the other by the numeral 7. A plate 8 is fixed back of each dial 6 and 7 and between these plates there is fixedly sup ported a plate 9. The plate 9 is preferably held assembled with the plates 8, and between the same, by connecting the plates 8 by pins 10 and securing the plate 9 at its end upon these pins. The plate 9, at a point between its end and coincident with the axis of the casing 5, is formed with a bearing 11 in which seats the inner ends of alined spindles l2 and 13. At their outer ends, these spindles carry indicator hands 14 which cooperate with the respective dials 6 and 7. Inasmuch as the spindles are not connected at their inner ends, they are supported for independent rotation and upon the spindle there are fixed pinions 15 and 16, respectively.

The spindles 12 and 13 are designed to be rotated through the medium of oscillatory gear segments and of the segments one as indicated by the numeral 17 and the other by the numeral 18. Each segment has a stem 20 pivoted at its end as at 21 upon one of the pins 10. The segments are thus supported for oscillation and they mesh with the respective pinions 15 and 16. A strip 22 is formed with a slot 23 and screws 24 are engaged through this slot and into the stem of the segment 17. In a like manner, a strip 25 is secured adjustably upon the stem of the segment 18. The function of these strips will be presently fully explained.

The fluid pressure actuated member of the gage is indicated bythe numeral 26 and is of the ordinary tubular form. Pivoted to the end of the member 26 are rods 27 and 28, the rod 27 being pivoted at its lower end to the outer end of the strip 22 and the rod 28 being pivoted at its lower end to the inner end of the strip 25. From the above it will be observed that the points of pivotal connection of the arms 27 and 28 are located at opposite sides of the pin which constitutes the axis of the two segments, it being understood that the strips 22 and 25 are relatively reversed. It will further be understood at this point that as the pressure increases, the tendency of the member 26 to straighten will result in an upward pull being exerted upon both rods 27 and 28. This will result in a downward swinging of the segment 17 and an upward swinging of the segment 18 thereby rotating the spindles 12 and 13 in opposite directions but to the same degree. The amplitude of angular movement of the segments may be varied by adjusting the strips 22 and 25, as will be readily understood. Also the position of the arms 27 and 28 may be reversed for the purpose of converting the device into a vacuum gage.

What is claimed is In a pressure gage, the combination with two axially alined spindles, an indicator carried by each, a gear also carried by each spindle, two spaced plates in which the respective spindles are journaled, two geared segments, one in mesh with each gear, an

arm carried by each segment, a strip adjustably carried by, the arm of each segment, a single pressure actuated member, and two links pivotally connected at the same point to the free end thereof and to their respective adjustable strips of the segments, one of said links being connected to the inner end of its strip and the other link being connected to the outer end of its strip,

whereby the indicators are operated in op- 10 posite directions and in unison.

In testimony that I claim the foregoing as my own, I have hereto ai'lixed my signature in the presence of two Witnesses.

SAMUEL DINSMORE. Vitnesses C. E. HENRY, D. C. I/VOLFE.

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

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