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Publication numberUS1264785 A
Publication typeGrant
Publication dateApr 30, 1918
Filing dateApr 7, 1917
Priority dateApr 7, 1917
Publication numberUS 1264785 A, US 1264785A, US-A-1264785, US1264785 A, US1264785A
InventorsBradford C Gibbs, Harry P Reiber
Original AssigneeBradford C Gibbs, Harry P Reiber
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Boiler-gage guard.
US 1264785 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




Patentedlpr. 30, 1918.






U0 .1 9 1 0 3 r p A d 6 t H 6 t a 1 lllt i 1:; at at are.




Application filed April 7, 1917.

To all whom it may concern:

Be it known that we, BRADFORD C. Gross and HARRY P. REiBER, citizens of the United States, and residents of Pittsburgh and WVilkinsburg, respectively, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Boiler-Gage Guards; and they do hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to boiler gage guards or shields, and more particularly to that class of guards used for preventing particles of broken gage tubes flying and injuring workmen or others, and has for one of its objects the provision of such adevice that will provide a clear vision of the gage at all times.

A further object is to overcome the difficulties heretofore encountered in such devices by their cumbersome and complex methods of attachment to the gages and also to provide a device that may be opened to permit the insertion of a new gage glass without dismantling.

Another object is to provide a ventilating back to prevent steaming and sweating, and also a back greatly facilitating the reading of the gage.

Our gage guard and shield is for use to protect the workmen from injury and is a safety-first device. The department of labor and industry of the different States requires that all boiler gages be protected, and our device thoroughly protects those employed in and around such gages, and at the same time facilitates reading of the gage, for the reason that the apertured backplate when viewed through the tubular column of water in the gage causes the apertures to appear as a scale, and to cause the Water level to be more clearly defined.

In order that our invention may be fully understood, we have described one embodiment thereof inthe following specification and illustrated it in the accompanying drawings. It will be understood, however, that our invention may be embodied in other forms, and that changes may be made in design, without departing from the scope thereof, as defined in the appended claims.

In the drawings:

Figure 1 is a perspective view of our improved gage;

Specification of Letters Patent.

Patented Apr. 30, 1918.

Serial No. 160,399.

2 is a similar view with the front casing open;

Fig. 3 is a view on the line 33, Fi 1;

Fig. 4: is a top plan view of the back plate;

l-Fig. 5 is a front plan view of the back p ate;

6 is a top plan view of the front casmg;

Fig. 7 is a front plan view of the same;

Fig. 8 is a perspective View of one of the U-shaped supporting members; and

Fig. 9 is a modified form of a similar member.

Referring more particularly to the drawings the letter A designates the device as a whole, which comprises a back plate 10 having a rectangular aperture 11 inclosed by a perforated plate 12. Tubular hinge members 13--13 and l4-14l are formed at the upper and lower corners of the plate 10 respectively.

The back plate 10 is provided with supporting lugs 1515 at top and bottom adapted to engage between the nipples 16 and the body of the valves 17. U-shaped clamping bands 18 are passed around the valves and have their free ends passing through apertures in the back plate 10 and are secured by nuts 19.

The front 20 and sides 21 and 22 are composed preferably of heavy plate glass, but it will be readily understood that isinglass, or other such material may be employed. The members 20, 21 and 22 are supported and held together by U-shaped channel top and base supporting members 23 and 23, forming a closure casing B, the inner walls 24, 24 and 24 of which a"c composed of lugs cut from the base of the member and bent upwardly.

The members 23 and 23 are apertured at 25 for the reception of the rods 25 having threaded terminals 26. The rods are adapted to draw the members 23 and 24 into firm engagement with the front 20 and sides 21 and 22 and hold said members in position by nuts 27.

Apertured lugs 28, 28 and 29, 29 are formed on the members 23 and 23 respectively and are adapted to cooperate with the tubular hinge members 1313, and 1l-1-l: respectively.

Locking rods 30 and 30 are adapted to be passed through the members 13-28 and 1429 on each side of the device to secure thefront 20 and sides 21 and 22 to the back plate 10.

If a gage tube becomes broken it is not necessary to remove our device to replace the gage, but only to remove one of the rods or 30 and open the closure B, the other rod serving with the members 1328 and 1429 to form a hinge bearing.

The advantages of our construction will be readily apparent; first the water level is at all times visible; second the device need not be removed to replace the gage; third it facilitates reading; fourth that it may be readily attached or detached; and fifth that it is an absolutely safety-first device,

Having described our invention, what we claim is:

1. A boiler gage guard comprising a back plate, a casing secured to said back plate, said casing comprising transparent front and side members, U shaped channel members engaging the ends of said front and side members, means for securing said channel members together, and U-shap'ed clamping members passing through and adjustable relative to said back plate for holding said casing in position on a gage.

:2 A b'ol-ler gage guard comprising a back plate, and a casing secured thereto, said casmg comprising U=shapecl channeled base and top members, transparent front and side members supported in said U-shaped members, and tie rods extending through said U- shaped members and adapted to hold said casing together.

3. In combination with a water gage of a boiler, a guard, comprising a perforated back plate, and a casing secured thereto, said casing comprising U-shaped channeled base and top members, transparent front and side members supported in said U-shaped members, and tie rods extending through said U- shaped members and adapted to bind said casing together.

4. A boiler gage guard comprising a back plate and a casing, said casing comprising channeled base and top members, transparent front and side members supported in said base and top members, and tie rods extending through said base and top members, said casing being detachably secured to said back plate, and clamping members engaged in said back plate for securing said guard in position.

In testimony whereof, we the said BRAD- ronn C. GIBBs and HARRY P. REIBER, have hereunto set our hands.



(topics as this patent may be obtained for five cents each, by aildressin'g the Commissioner of Batents, Washington, D. 0,"

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4245513 *Feb 5, 1979Jan 20, 1981Will Ross, Inc.Variable area meter insert unit
US5323654 *Sep 7, 1993Jun 28, 1994Newman Darrell BShielded sight glass
US8794173 *May 7, 2010Aug 5, 2014Spacelabs Healthcare LlcLight enhanced flow tube
US20110088485 *Apr 21, 2011Bluemner Erik JLight Enhanced Flow Tube
U.S. Classification73/326, 73/327
Cooperative ClassificationG01F23/02