US1288886A - Hydraulic-pressure and time indicator. - Google Patents

Description

C. D. HELM.

HYDRAULIC PRESSURE AND TIME INDICATOR.

APPLlCATlON FILED FEB. 9,1918.

4 Patented Dec. 24, 1918.

2 SHEETS-SHEET I Fill- .1 run: so. rumunm. vuunnwmn c C. D. HELM.

HYDRAULIC PRESSURE AND TIME INDICATOR.

APPLICATION FILED FEB. 9, 1918,

1 88,886 Patented Dec. 24, 1918.

2 SHEETS-SHEE T 2.

UNITED sTATEs PATENT OFFICE.

CLYDE D. HELM OF. FORT WORTH, TEXAS, ASSIGNOB TO OIL MILL MACHINERY & MANUFACTURING COMPANY, OF FORT WORTH, TEXAS, A CORPORATION OF TEXAS.

HYDRAULIC-PRESSURE AND TIME INDICATOR.

Application filed February 9, 1918.

To all whom z'tmay concern:

Be it known that I, CLYDE D.- HELM, a citizen oftheUnitedStates, residing at Fort WVorth, in the county of Tarrant and State of Texas, have invented certain new and useful Improvements in Hydraulic-Pressure and Time Indicators, of which the following is a specification.

My invention-relates.- to indicators, and more particularly-t0 indicators for recording the timeswhen hydraulic cylinders are in operation andgto indicate when the cylin: ders commence work or reach the required pressure and which will indicate when the pressure in the cylinders goes below. the required pressure, The device is particularly useful, in cotton seed oil mills to prevent waste of oil. If a press stops working, as when through the carelessness of an employee, oil will waste. The object of this invention is to provide a simple device which willinstantly indicate the time when the required pressure ceases and to record the time when the press stops, and when it starts. Other objects and-advantages will be fully explained in the following description and the invention will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings which form a part of this application.

Figure 1. is a perspective view of the indicator. Fig. 2 is an enlarged interior elevation, showing the relative positions of the operating parts. Fig. 3is aplan view of the interior mechanism. Fig. 4 is a detail View of the main operating pulley. Fig. 5 is a detail plan view of the recording dial and;

the release therefor. Fig. 6 is a side elevation of the recording dial. Fig. 7 is adetail View, showing the recording strip which is fed fromthe-indicator during operation.

Similar characters of reference are used to indicate the same parts throughout the several views.

The indicator herein set forth is a time operated indicator, a clock being inclosed in a casing l which is attached to the main casing 2. The clock is provided witha projecting shaft 3 which is connected to the shaft4 by clutch jaws 5. The operating mechanism is provided with a frame composed of two members. One frame member has arms6 at the upper side and at the lower side, the frame substantially I-shaped, and this frame Specification of Letters Patent.

Patented Dec. 24, 1918.

Serial No. 216,157.

place by gravity. The frame members are provided withopen bearings 15 and a gravity pulley16 cooperates with the main pulley 10 for feeding the strip 12. When the clock mechanism drives the pulley 10, the pulley 16 clamps the strip 12 thereon by gravity and in this manner the strip 12 is fed forward off the drum 13. The strip 12 is provided with figures indicating the hours and minutes and marks for indicating the min utes and the hours. Therecording strip12 is timed with the clock-when the device is started or set to work. The recording strip will. be fed regularly forward whether any record is made or not. When there is no recordmade, this shows that the press is not being operated. A dialiwheel punch 11' is provided for making records on the strip 12. The wheel is provided with radial teeth on the periphery thereof which will perforatethe strip 12 for the purpose of making records thereon. This wheel will be operated by friction and by the strip 12 pulling on the teeth of the wheel. Thewheel 11 is carried in spring controlled bearing arms 17 which are rigid with a shaft 18 which is, journaled in upper arms 6 and 8. A spring 19 is coiled about one part of the shaft 18 and is caught on the arm 6.at one endand the other end of the spring bears downon the bearing arms 17. In this manner. the wheel 11. is made to perforate the strip 12. YVorking connection of the Wheel 11 and the pressure in the hydraulic cylinders is made the release bar 25 and thus lift the wheel 11 out of contact with the strip 12. The release bar is provided with a pivot shaft 26 which is provided with bearings 27 in the arms 6 and 8, the ends of the shaft being pointed to engage the bearings'27. The bar 25 is bifurcated to receive the wheel 11 and is provided with a cross bar 28 for lifting the springcontrolled arms 17. When the screw 24: bears down on the release bar 25, this bar will lift the wheel 11 out of contact with the strip 12 by means of the bar 28. When the pressure is kept up to the required amount in the hydraulic cylinder, the pressure, acting through the pipe 20 and the curved pipe 21 will tend to expand or straighten out and thus lift the screw 24 off the release bar 25. The spring 19 will instantly throw the wheel 11 down on the strip 12 and thus commence perforating the strip to indicate that the hydraulic press is operating with the required pressure. When the hydraulic press is not operating, there will be no pressure in the pipe 21 and this pipe will go back to normal position and press down on the screw 24 and thus cause the bar 25 to release the wheel 11 from the strip 12. The pulley 10 has an annular peripheral groove 29 so that the teeth of wheel 11 will not strip anything eX- cept the paper strip 12. The shaft A of wheel 10 is provided with ball bearings which are inclosed in the cups 30.

For convenience in attending to the interior parts, a door 31 is hinged to the casing at 32 and provided with a knob 32.

What I claim, is,

1. A pressure indicator and recorder comprising a recording strip, a time-actuated mechanism for feeding said strip forward continually, a recording dial for perforating said strip when the pressure is on, and operative connection of said dial and the cylinder whose pressure is to be recorded, including a bent pipe automatically eXpansiblc by the pressure element carried therein, for permitting said dial to perforate said strip when the pressure is on and said pipe being automatically contracted for releasing said dial from said strip when the pressure in said cylinder ceases.

2. A pressure indicator and recorder co1nprising a record strip, a time-actu ated mechanism for feeding said strip forward continually, a. recording dial for perforating said strip standing normally out of engagement of strip, and operative connection of said dial with the cylinder whose pressure is to be indicated and recorded for causing said dial to engage and perforate said strip when the required pressure is in the cylinder and for disengaging said dial from said strip when the pressurein said cylinder is insuiiicient'or has ceased.

3. A pressure indicator and recorder comprising a record strip, a timemctuated mechcylinder is insufficient or ceases.

4. A pressure indicator and recorder comprising a strip containing marks indicating hours and minutes, a time-actuated mechanism for feeding said strip forward continually, a recording dial standing normally out of engagement with said strip, and operative connections of said dial with the cylinder whose pressure is to be indicated and recorded including a bent pipe having communication with the interior of said cylinder and a regulating screw carried by said pipe and a controlling device to be engaged by said screw for causing said dial to engage said strip and perforate the same when the required pressure is in said cylinder and to disengage said dial from said strip when the pressure in said cylinder is insufiicient or ceases. v

5. A pressure indicator and recorder comprising a record strip, a time-actuated mechanism for feeding said strip forward continually, a recording dial standing normally out of engagement with said strip, a spring for causing positive action of said dial, and operative connections of said dial with the interior of the cylinder whose pressure is to be indicated and recorded including a bent pipe and controlling devices causing said dial to engage said strip when the required pressure is in said cylinder and for disengaging said strip when the pressure in said cylinder is insufficient or ceases.

6. A pressure indicator and recorder comprising a record strip, a time-actuated mech anism for feeding said strip forward continually, including a bearing wheel having an annular groove therein and supporting 5 said strip and a. gravity-actuated wheel hearing on said strip, a recording dial standing normally out of engagement with said strip, operative connection of said dial with the cylinder whose pressure is to'be indicated 12 and recorded including a bent pipe communicating with the interior of said cylinder, a spring for causing positive action of said dial, and means controlled by said bent i e for causin said dial to en a c said 7, A pressure indicator'and recorder comprising a record strip, a time-actuated mechbe recorded and indicated for causing said anism for feeding said strip continually fordial to engage said strip when the required ward, including a pulley having an annular pressure is in said cylinder and to disengage peripheral groove supporting said strip and said dial from said strip when the required 5 a gravity actuated idler cooperating therepressure ceases and when there is no pres- 15 with, a toothed dial adapted to make persure in said cylinder. forations in said strip by striking there- In testimony whereof, I set my hand, this through into said grooves, and means opera- 31st day of January, 1918. tively connected with said dial and with the 10 interior of the cylinder whose pressure is to CLYDE D. HELM.

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

Images