US1265618A - Platform-scale. - Google Patents

Description

P. E. GRADY & F. H. ROBILLARD.

PLATFORM SCALE.

APPLICATION FILED MAR. l8. T916. 1,265,618. Patented May 7,1918.

2 SHEETSSHEET I- l l'l l l l l l'l I'I UNITED STATES- PATENT oF IoE.

PETER E. GRADY AND FRANK'H. ROBILLARFD, OF BURLINGTON, VERMONT. v

PLATFORM-SCAL E.

Specification of LettersPatent.

Patented May 7, 1918.

Application filed March 18, 1916. Serial No. 85,221.

To all whom it may concern:

Be it known that we, PETER E. GRADY and FRANK H. ROBILLARD, citizens of the United States, residing at Burlington, in the county of Chittenden and State of Vermont, have invented new and useful Improvements in Platform-Scales, of which the following is a specification.

This invention relates to improvements in platform scales, and the object of the invention is to construct a scale primarily adapted for weighing liquids and which is provided with an outlet spoutconnected with the liquid supply and which has means actuated by the balancing of the beam for permitting the closing of the controlling valve of the pipe member for said spout when a determined quantity of liquid has been drawn through the spout.

With the above and other objects in view, the improvement resides in the construction, combination and arrangement of parts set forth in the following specification and fallin within the scope of the appended claim.

11 the drawings:

Figure 1 is a front elevation of a scale constructed in accordance with the present invention, parts being in section,

Fig. 2 is a vertical longitudinal sectional view taken in a line with the standard and with the beam of the scale,

Fig. 3 is a transverse sectional view approximately on the line 33 of Fig. 2,

Fig. 4 is a sectional view approximately on the line i4 of Fig. 2, and

Fig. 5 is a diagrammatic View of the electric circuits.

Referring now to the drawings in detail, the numeral 1 designates the base or shell of a scale having the usual pillar 2 provided with the angularly disposed cap 3. On the cap is arranged the vertically extending hanger 4 for the beam 5. The beam is, of course, pivoted to the hanger and has one of its ends provided with the usual rounded neck 6 which carries the rod that has its end flanged and upon which rests the slotted weights. The cap 3 has arranged thereon, but insulated therefrom, a vertically disposed slotted guide arm 7 for the neck of the beam, and the beam is connected by the usual rod 8 to the platform 9 of the scale. The guide is of electric conducting material, as is the scale beam, and arranged in the slot of the guide member 7 is a sheet of insulated material 7 designed to engage with the goose neck 6 of the beam, when the beam is in its lowered position, the opposite or upper wall provided by the slot being free from such insulation.

Arranged upon the base or shell 1 of the scale, in a line with the pillar 2 thereof is a housing or casing 10 which preferably has its open front closed by a door 11. The housing preferably comprises a substantially rectangular box-like member and arranged vertically with respect to the scale and disposed tothe opposite sides of the housing are pipe members 12 which pass through the shell of the scale'and through the floor upon which the scale is supported. These pipe members may be provided with flexible hose having couplers thereon whereby each of said pipes may be connected with the bung or outlet of a barrel or other container of charged liquids. The pipes 12 are provided with angular extensions which enter the housing as indicated by the numerals 13, and the said pipes are centrally connected by an outwardly extending outlet pipe l i that has its end provided with a downturned nozzle 15. The nozzle is preferably arranged above the center of the platform 9 of the scale, and the pipe member or members 13, to theoppositesides of the outlet pipe 14 have check valves 16 which will prevent'any liquid in the outlet pipe reflowing through the pipes said valves having an operating handle 18,

and these handles are each under the influence of a spring 18 whereby the same are normally swung to close the valves.

Arranged within the housing 10 are suitable electro-magnet-s which are arranged in pairs, the respective pairs being designated by'the numerals 20 and 21. The numeral 22 designates the armature for the cores of the magnets 20, and the numeral 23 designates .the armature for the magnets 21. Each of these armatures, 22 and 23, is provided at its end, with an offset portion forming a catch 24:. These catch members project through openings in the sides of the housing and engage with the handles 18 of the valves 17 when the same are swung to approximately a horizontal position, against the pressure or tension of their springs to open the said valves 17 If desired each of the armatures may be under the influence of suitable weak springs to permit of the same normally swinging to bring their offset ends to engage with the handles of the valves, or the said armatures being constructed of spring material may be so moved without the aid of additional springs. The ends of the handles 18 are beveled, and the ends of the catch members 24 are also beveled, but in an opposite direction from that of the handle, so that the said handles may be swung below and into engagement with the catches without injury to the said catches, Each of the armatures opposite thecatch thereof, has arranged thereon a striker arm 25, disposed to contact with an alarm, such as a bell 26, when the armatures are attracted by the magnets and the catch members thereof are brought out of engagement with the handles 18 to permit of the springs 19 closing the valve 17. The numeral 27 designates a contact member which is arranged upon a guard arm 7 and is disposed above the neck of the beam 5 when the said beam is in its normal horizontal position, but which is arranged to be contacted by the said neck when the beam is tilted when the weight of the platform equalizes the poises on the beam and the weights arranged upon the neck of the beam. This contact member 27 is in electric circuit with the magnets 20 and 21 as well as with a battery 28, the return wire of the circuit from the battery being grounded on the scale. I

The platform 9 is provided with an out-' be retained practically dry.

The operation of the device may be briefly described as follows: When a vessel is arranged on the platform below the nozzle, the poise of the beam is arranged to compensate for the weight of the vessel. Weights determining the required quantity of fluid to be received in the vessel are arranged upon the neck of the beam and thereafter the handles 18 are turned to open the valves 17, the said handles being engaged Copies of this patent may be obtained for 17 and also causing the striker arms 25 to contact with the bells 26, thus giving an audible alarm to the clerk notifying him that the proper amount of liquid has been drawn and also breaking the circuit.

From the above description, taken in connection with the accompanying drawings, the simplicity of the device as well as the advantages thereof will, it is thought, be perfectly apparent to those skilled in the art to which such invention appertains without further detailed description.

Having thus described the invention what we claim is The hereindescribed construction of scales for weighing liquids, including a platform and a pivoted beamconnected therewith, a liquid supply pipe to the rear of the platform and having an-outlet nozzle arranged over the platform, a spring influenced valve for the pipe and a handle for said valve, a catch engaging with the handle to hold the valve in one position, an electric magnet, a spring armature for the magnet connected with-the catch, a slotted guide for the scale beam of electric conducting material, insulated from the remainder of the scale and from the beam, when the beam is in one position but in the path of contact with the said beam when the beam is in another position, and. said guide being in electric circuit with a battery, the magnet, and the beam.

In testimony whereof we afiix our signature in presence of two witnesses.

PETER E. GRADY. FRANK H. ROBILLARD. Witnesses:

A. S. DREW, JOHN HEBERT.

five cents each, by addressing the Gommissioner of Patents,

Washington, I). C.

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