US257280A - blessing - Google Patents

blessing Download PDF

Info

Publication number
US257280A
US257280A US257280DA US257280A US 257280 A US257280 A US 257280A US 257280D A US257280D A US 257280DA US 257280 A US257280 A US 257280A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
piston
valve
steam
auxiliary
cylinder
Prior art date
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
Application number
Publication date
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00Reciprocating-piston machines or engines characterised by use of uniflow principle

Description

(N0 Model.)

AUTOMATIC STEAM VALVE.

No. 257,280. Patented May 2,1882.

2 Sheets-Sheet I. J. H. BLESSING. 4

www@ i (No Model.) 2 Sheets-Sheet 2.V

J. H?. BLESSING.

AUTOMATIC STEAM VALVE.

No. 257,280. Patented May 2,1882.

l c UNITED d STATES PATENT OFFICE.

JAMES H. BLESSING, OF ALBANY, NEW YORK.

AUTOMATIC STEAM-VALVE. v

SPECIFICATION forming part of Letters Patent No. 257,280, dated May 2, 1882.

' Application tiled March 6, i832. (No model.) I

To all 'whom it may concern Be it known that I, JAMES EI. BLEssrNG, ot the city of Albany and State of New York, have invented a new and useful Improvement in Automatic Steam-Valves for Pumps, of which the following is a full, true, and exact descriptiomreferenee being had to the accompanying drawings.

This invention relates to that class of pumpcylinders in which the steam and exhaust valves are operated by an auxiliary valve, which auxiliary' valve is moved by a tappet or tappets. In my contrivance the valves and valve-moving apparatus-are all located within the piston ofthe steam-cylinder, and are generally so contrived as to operate with but-little necessity for shitting-.boxes or similar mea-ns of packing.

In my drawings, Figure l represents a verf tical section through the cylinder,showin g the piston and valve operatin g mechanism Fig. 2, asection at right angles through Fig. 1 on the line :c w,- Fig. 3, a horizontal view ot' the up' per surface of the piston.

My piston contains both vthe main and auxiliary valves, and is provided with tappets for moving said auxiliary valves.

A represents the steam-cylinder; B, the pis ton containing the parts before described.

C represents the steam and D the exhaust pipes of the steam-cylinder.

Within Vthe pistou B is arranged the auxiliary piston E, which operates the main valve F. This piston is suitably packed within a cylinderarranged within the piston B,and is made cupshaped at its ends, receiving the corresponding projections on theinside of the piston-heads, thereby avoiding the necessity of large clearances.

The steam-valve is shown at F, and is an ordinary D slide-valve, but slides upon a cylindrical seat within the piston B, as is clearly shown in Fig. 2. This valve is provided with arms R, which surround the auxiliary piston E, 'by means ot' which arms motion is transmitted from said auxiliary piston to the main valve F. Steam is admitted to the central chamber surrounding the stem of piston E by the ports G, communicating immediately with the steam gress and escape ot' steam from the two en'ds of the cylinder. y y

P represents the exhaust-port communicating with the exhaust-pipe D, previouslytdescribed,

In the situation shown in Fig. 1 the piston is moving in the direction of the arrow, and the main valve F being thrown to the left, steam is entering the cylinder on the right, and the exhaust-steam is escaping through the passage L on the left ot' the apparatus, and so t0 the exhaust. It will be plain that after the auxiliary piston E is thrown to the other end of its cylinder the motion of the main piston will begin in the opposite direction. The position ot this auxiliary piston E is determined by the valve H, which slides upoirtlie valveseat shown in Fig. 3. This valve is moved by tappets K, projecting through the ends of the piston, and adapted to strike against the cylinder-heads. The valve H contains two steam-passages at either end, and is substantially two D-valves connected together. This valve is guided in its valve-seat J by a slot and pin, S. Steam-passages N connect with the ends of the interior cylinder, as is clearly shown. Cut around the exterior piston is an annular passage, O, (shown in dotted. lines in Fig. 2,) which opens into the exhaust-chamber P at O', Fig. l. This passage communicates with the exhaust-ports TT. (Shown in Fig.) In the position shownin the figure the auxiliary valveis thrown to theleft, and consequentlythe port and passage on the right of the apparatus is uncovered, and the steam, entering by C, can pass to the interior cylinder on the right of the auxiliary piston E, while the left side exhaust-port by the exhaust-passages T and 0, heretofore described. As the pistou continues its movement to the left the tappet K on the left of the apparatus, striking against the cylinder-head, will throw the valve H in the opposi te direction, thereby admittingsteam to the left of the piston E and opening the exhaust-port on the right of said piston. The piston E will consequently be thrown to the right, thereby reversing the position ot' the main valve F, and the main piston will move in the opposite direction or to the right.

At M M M arel shown valves for operating of the cylinder is in communication with theV IOO the apparatus on starting in the well-known way.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, in a Steameylinder, of a piston, a main valve located within said piston and carried by it, and serving to operate said piston, and an auxiliary valve, also `carried by and moving with said piston, which valve serves to operate the main valve, substantially as shown and described.

2. The combination, in a steam-cylinder, of a pist0n,an interior auxiliary piston operating a main valve carried by said piston, and an auxiliary valve located in the main piston, serv-ing to operate the auxiliary piston, substantially as shown and described.

3. The combination,in a steam-cylinder provided witli a steam-inlet above andan exhaustoutlet below, of a main piston carrying a steamvalve operating said piston, and arranged at the bottom of said piston, an auxiliary piston for operating the main valve, an auxiliary valve for operating said auxiliary piston, and the steam and exhaust passages passing around or through the main piston for conveying the steam from the steam-inlet to the steam-outlet, substantially as shown and described.

4. The combination, in a steam-cylinder, ot' a main piston carrying a slide-valve for operating` itself, an interior auxiliary piston located centrally with relation to the axis of the main pistou, and an auxiliary valve for operating the auxiliary piston, and itself carried by the main piston, substantially as shown and described.

JAMES H. BLESSING. Witnesses:

Gao. H. EVANS, ANTHONY GREF, Jr.

US257280A blessing Expired - Lifetime US257280A (en)

Publications (1)

Publication Number Publication Date
US257280A true US257280A (en) 1882-05-02

Family

ID=2326566

Family Applications (1)

Application Number Title Priority Date Filing Date
US257280A Expired - Lifetime US257280A (en) blessing

Country Status (1)

Country Link
US (1) US257280A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738770A (en) * 1952-11-14 1956-03-20 Int Harvester Co Hydraulically lockable ram and control therefor
US2789545A (en) * 1954-11-29 1957-04-23 Gen Motors Corp Windshield wiper motor
US2862478A (en) * 1956-06-11 1958-12-02 F E Myers And Bro Company Fluid motor piston
US4286929A (en) * 1977-03-23 1981-09-01 Rodney T. Heath Dual pressure gas motor, and method of operation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738770A (en) * 1952-11-14 1956-03-20 Int Harvester Co Hydraulically lockable ram and control therefor
US2789545A (en) * 1954-11-29 1957-04-23 Gen Motors Corp Windshield wiper motor
US2862478A (en) * 1956-06-11 1958-12-02 F E Myers And Bro Company Fluid motor piston
US4286929A (en) * 1977-03-23 1981-09-01 Rodney T. Heath Dual pressure gas motor, and method of operation

Similar Documents

Publication Publication Date Title
US624890A (en) Valve-controlling device
US335855A (en) Steam-actuated valve
US526149A (en) Valve for steam-pumps
US123174A (en) Improvement in valves for steam-engines
US151667A (en) Improvement in valves for direct-acting engines
US112385A (en) Improvement in slide-valves for steam riveting-machines
US746158A (en) Engine for steam-pumps.
US616886A (en) Heinrich brinkmann
US351657A (en) Steam-cylinder
US629822A (en) Valve mechanism.
US569366A (en) wilkin
US449457A (en) Starting valve for compound engines
US394684A (en) Rotary engine
US695675A (en) Reversing-gear for engines.
US612695A (en) Steam-engine
US701574A (en) Throttle-valve.
US635537A (en) Valve.
US192041A (en) Improvement in steam-engine valves
US700064A (en) Steam-engine.
US263785A (en) hubbaed
US203009A (en) Improvement in automatic cut-offs for plane-valve engines
US194493A (en) Improvement in valves for steam-engines
US234649A (en) Steam-actuated valve
US206708A (en) Improvement sn steam-engines
US174954A (en) Improvement in valves for steam-engines