US1281835A - Steam-trap. - Google Patents

Steam-trap. Download PDF

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Publication number
US1281835A
US1281835A US21347418A US1281835A US 1281835 A US1281835 A US 1281835A US 21347418 A US21347418 A US 21347418A US 1281835 A US1281835 A US 1281835A
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United States
Prior art keywords
steam
valve
water
trap
tank
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHARLES C CANNY
ARTHUR E RAKESTRAW
THOMAS G RAKESTRAW
Original Assignee
ARTHUR E RAKESTRAW
CHARLES C CANNY
THOMAS G RAKESTRAW
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Application filed by ARTHUR E RAKESTRAW, CHARLES C CANNY, THOMAS G RAKESTRAW filed Critical ARTHUR E RAKESTRAW
Priority to US21347418 priority Critical patent/US1281835A/en
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Publication of US1281835A publication Critical patent/US1281835A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F22D5/04Controlling water feed or water level; Automatic water feeding or water-level regulators with pivoting buckets
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/2931Diverse fluid containing pressure systems
    • Y10T137/2937Gas pressure discharge of liquids feed traps [e.g., to boiler]
    • Y10T137/2947Gas pressure controlled by amount of liquid in trap
    • Y10T137/295Plural trap chambers
    • Y10T137/2953Gravitating

Description

lu/vanto@ @mw O 1 9 .0, 1I.. LLM C 0 d C t 11.. nv t nu P Ta G. @L A. E. RAKESTRAW.
STEAM TRAP,
APPLICAHON FILED 11m24.191s.
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THOMAS Gr. RAKES'IRAW AND ARTHUR E. BAKESTRAW, OF DETROIT, MICHIGAN, ASSIGNORS OF ONE-FOURTH TO CHARLES C. CANNY, OF DETROIT, MICHIGAN.
STEAM-TRAP.
Specification of Letters Patent.
Patented oet. 15, 191s;
Application filed January 24, 1918. Serial N o. 213,474.
To all whom t may concern:
Be it known that we, THOMAS G. RAKE- s'rRAw and ARTHUR E. RAKnsTRAw, citizens of the United States, residing at Detroit, county of Vayne, State of Michigan, have invented a certain new and useful Improvement in-Steam-'Irapa and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyingV drawings, which form a part of this specification.
Our invention relates to steam traps shown in the accompanying drawings and more particularly described in the followingspecification and claims.
One of the objects of this invention is to simplify the general construction of apparatus of this description by dispensing with many parts common to the operation of the type of trap employing tilting tanks, which when actuated serve to operate its inlet and discharge valves.
One feature of the invention is the vertical alternating movement of the respective tanks and valves controlling the delivery of water and steam and discharge therefrom, thereby eliminatinov many of the rocking parts necessary to the action of the tilting type of trap.
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 may be made in the precise embodiment herein described without departing from the spirit of the invention.
In the accompanying drawings Figure 1 is a longitudinal vertical sectional view on line 1-1 of Fig. 2.
Fig. 2 is a cross-sectional view on line 2-2 of Fig. l.
Referring now to the letters of reference placed upon the drawings:
A, denotes a suitable base plate, from which rises a standard B.
C, indicates a rocking arm pivoted to the upper end of the standard.
D, D, indicates a pair of vertically movable tanks connected to theJ rocking arm by links d.
E, denotes a reciprocating sleeve valve secured to the under side of each tank at one end, for controlling the delivery of water to and from the tanks.
F, indicates the valve cylinder or casing, bolted to the base-plate.
G, is a pipe having branches leading'to each valve cylinder for conducting thereto the water of condensation from a heating system or other condensing surface (not shown).
G, is a check valve adapted to close against the return of the water to the heating system.
H, is a discharge pipe having branches connected with the outlet port of the cylinder for conducting the water from the trap to the boiler (not shown).
I, I, denote reciprocating steam valves similar in construction to thewater valves E.
J, J, are the cylinders or casings of said valves secured to the base plate.
K, indicates a pipe having branches leading to the inlet port of each steam valve connecting the steam space of the boiler therewith. K', is an exhaust pipe provided with similar branches, leading to the exhaust ports of the steam valve. L, denotes the usual pipe extending upwardly from the steam valve within the tank to deliver steam above the water level therein.
M, is an expansion ring ittedto both the steam and water valves, adapted to seal the respective'ports in the valve cylinders upon the valve registering therewith. N, is a suitable packing nut fitted to each valve cylinder to insulte against leakage around the valve.
I-Iaving indicated the several parts by reference letters the construction and operation of the apparatus will be readily understood.
The trap having been installed at a suitable altitude above the boiler, and the several pipe connections between the heating system and the trap, and between the trap and boiler common to apparatus of this character being properly made-condensaion from the heating system is permitted to enter the elevated tank of the trap. Upon the latter filling with' water suliciently to overcome the weight of the depressed tankthe elevated tank descends, opening thereby the discharge port through the water valve to the boiler, and simultaneously with the opening of the steam inlet port through the `steam valve,- .Steam having been thus admitted to the tank, the pressure therein is balanced With the boiler pressure permitting the water to flow from the tank by gravity to the bo-iler.
While the water is discharging from one tank into the boiler, water from thev condensing system (not shown) enters the other tank in the manner just described until its weight again causes the tank to descend thereby forcing the other tank upwardly through the action of the tilting lever C. The steam valve being shifted through the upward movement of the tank, boiler pressure is thereby cut o and thel exhaust port opened to relieve vthe tank of all pressure, that the water of condensation may again enter the tank through valve at its opposite end. l
It will now be apparent that Water is alternately discharged by one tank While the other is receiving water from the condensing system, the water being discharged by gravity into the boiler through the alternate admission to the tanks of steam to balance the boiler pressure.
`Having thus described our invention, what We claim is l. In an apparatus of the character described, a base, a relatively long standard rising from the base, a substantially V- shaped lever pivoted intermediate its ends to the upper end of said standard for rocking movement thereon, pairs of cylindrical casings rising from the base, Lipper and lower pipes connecting the casings .of each pair and communicating therewith, ran inlet pipe connecting the upper pipes, an exhaust pipe connected to the lovver pipes, a vcylindrical ported valve mounted for reciprocating movement in each of said casings, tanks rigidly connected to the valves of opcontrolled.
2. In an apparatus of the character described, a base, a relatively long standard rising from the base, a rocking lever pivoted to the upper end of the standard, a pair of vertically movable tanks connected to said lever, a pair of sleeve valves rigidly Vconnected With the tanks adapted to control' the alternate delivery and discharge of- Water to and from the tanks, a pair of sleeve valves rigidly connected with the tanks adapted to alternately deliver steam tothe tankand relieve the pressure therein, valve casings for the respective valves mounted on the base plate and constructed to restrict the valve sleeves to a straight, up andVv down vertical movement and thereby restrict-the tanks to a straight up and down movement, the said casings having inlet and discharge ports controlled by said valves, and suitable pipe connections leading to and from the respective valve casings and connected to the inlet and discharge ports thereof for the delivery and discharge of water and also of; steam and the relief of pressure in the ftanksL In testimony whereof we sign this specification in the presence of two witnesses.V
THOMAS G. RAKESTRAW. i ARTHUR E. RAKESTRAW.
Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,
` Washington, D. C.
US21347418 1918-01-24 1918-01-24 Steam-trap. Expired - Lifetime US1281835A (en)

Priority Applications (1)

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US21347418 US1281835A (en) 1918-01-24 1918-01-24 Steam-trap.

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Application Number Priority Date Filing Date Title
US21347418 US1281835A (en) 1918-01-24 1918-01-24 Steam-trap.

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US1281835A true US1281835A (en) 1918-10-15

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