US 845258 A
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Description (OCR text may contain errors)
No 845,258. PATENTED FEB. 26, 1907.-
A. B. PRICE.
APPLICATION FILED SBPT.11, 1906.
a new and useful Gage, of
UNITED. STATES PATENT OFFICE.
ANDERSON BITTLE PRICE, OF VICAR SWITCH, VIRGINIA.
Specification of Letters Patent.
Patented Feb. 26, 1907.
Application filed September 11, 1906- Serial No. 334,157.
To all whom it'ntcty concern.-
Be it knownv that I, ANDERSON BITTLE PRICE, a citizen of the United States, residing at Vicar Switch, in the county of Montgomery and State of Virginia, have invented which the followingisa specification.
' This invention relates generally to watergages for boilers, and particularly to that class of such devices which is provided with means for preventing injury due to the bursting of a gage-tube.
The objects of the invention are to improve and simplify the construction of such devices, furthermore, to increase their efiic ency in operation and to decrease the expense attending their manufacture.
With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise'embodiment of invention heredisclosedcan be made within the scope of the following claims without departing from .the spirit of the invention or sacrificing any ofits advantages.
In the accompanying drawings, formingv part of this specificatlon, Figure 1 is a side elevation of a gage constructed inaccordance with the resent invention. Fig; 2 is-a vertical sect1on.' Fig. 3 is a horizontal section-'- through the middle of the gage.
Like reference -"numerals indicate corresponding parts in the different figures of the drawings.
The improved gage of the present invsr tion is provided with a lower pipe-section 1,
which is formed with a longitudinal bore 2 of sufficient size to receive in a loose manner the lower end of a glass gage-tube 3. The lower pipe-section 1 is formed exteriorly, ad jacent the lower end thereof, with threads. 4 and is adjustably fitted into the upper end of a pipe 5, which communicates with the Intermediate its ends the lower pipesection 1 is formedwith'a collar 6, and above said collar the pipe-section is formed with a smooth upper end 7 The smooth upper end '7 of the pipe-section 1 is ad apted to fit into an annular packing-chamber 8, formed in the lower member of a gage-shield, which is indicated generally by 10. Leading out of the upper end of the annular aching-chamber 8 is abore 11, through whic the gage-tube 3 ing adapted to receive the smoothlower end 7 of an upper pipe-section 14, which is formed with a-collar 6 and threads i'to engage an upper pipe 5, which leads into the boiler. The upper member 13 of the gageshield 10 is formed in each of its flat faces with an undercut groove 15. The lower and upper members 9 and13 are connected with each other by a plurality of rods 16,'Which, as shown in Fig. 3, preferably are approximately diamond shape in cross-section and radiate with respect to the gage-tube 3,the inner ends 17 of said rods being preferably in contact with the gage-tube 3, soas to brace the same. The rods 16 may be either formed integral with theend members 9 and 13, as shown,.or they may be suitably secured to said end members Eachv of the rods 16 preferably is formed with a pair of grooves 18, which act as guideways to receive glass protecting plates 19. In the event that the gage-tube 3 should burst under eX cessive pressure the protecting-plates 19 will prevent the scattering of the pieces of glass. For the purpose of draining the shield 10 in the event that any water should enter the same the lower member 9 is formed with a plurality'of inclined drain-passages 20.
Whenever it is necessary to supply a new gage-tube 3, the lower pipe-section 1 is screwed downward into the pipe 5 and the having a washer or packing-ring 12 and beupper pipe-section .14 is-screwed upward into'tlieupper pipe 5, so that said pipe-sections 1 and 14 become disengaged from the lower and upper members 9'and 13 of the gage-shield 10. This disengagement of the pipe-sections removes the compression from the packing-rings 12 and permits the insertion of. a new gage-tube through the bores 1 1 of the upper and lower members, after which the shield 10 can-be replaced between the pipe-sections 1 and .14, and said-sections can be screwed together in erder again to compress the packing-rings 12 and hold the shield 10 securely in position.
It will be apparent from Fig. 2 that the collar 6 of the upper pipe-section 14 projects over the upper ends of the protecting-plates 19, for which reason, when the parts are assembled, it will be impossible to move the protecting-plates 19 upward out of their guideways. i
The improved gage of the present invention'is strong, simple, durable, and inexpen sive in construction, as well as thoroughly eflicient in operation.
While a shield of square cross-section has been depicted in the present instance, it is to be understood that the shape can be changed to suit any given requirement and that one or more glass plates 19 may beemployed.
What iselaimed is- I 1. A device of the character described comprising upper and lower pipe-sections each having a longitudinal bore, a collar and a smooth upper end, a shield comprising upper and lower members each having a bore and a packing-chamber adapted to receive the smooth upper end of one of said pipe-sections, said upper member having undercut grooves, rods connecting said upper and lower members and having grooves thereinforming guideways, transparent plates extending down through the undercut grooves of the upper member and. through the guide- 1 Ways of said rods, a gage-tube extending through said upper and lower members and projecting loosely at its upper and lower ends eeaaee into the bores of said upper and lower pipe sections, and packing-rings surrounding said gage-tube and disposed in said packing chamber, said gage-tube being in Contact with the inner ends of said rods.
2. 'A guard for water-gages said guard haw ing longitudinally-disposed openings therein gradually diminishing in width toward their inner ends, said inner ends being'adapted to be closed by a gage-tube, and a transparent plate closing the outer end of each opening.
3. A device of the character described comprising tubular gage-tube-receiving devices, connections between said devices adapted to contact throughout their lengths with and to reinforce a gage-tube, and transparent plates secured to and closing the spaces between, the connections to completely inclose the tube.
4. A device of the character described 0011b prising tubular gage-tube-receiving devices, connections between said devices adapted to contact throughout their lengths with and to:
reinforce a gage-tube, and transparent plates.
secured to and closing the spaces between,
the connections to completely inclose the tube, one of the gage-tube-receiving devices havinga drain therein. f a
In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.
ANDERSON BITTLE PRICE. Witnesses:
G. O. CORBOUGH, J. S. PRICE.