US762933A - Throttle-valve for portable pneumatic motors. - Google Patents

Description

PATENTED JUNE 21, 1904. R. A. NORLING.

APPLIGATION FILED NOV.19, 1903.

THROTTLE VALVE FOR PORTABLE PNEUMATIC MOTORS.

fio MODEL.

PAT NT OFFICE.

Patented June 21, 1904.

AUTOMATIC'MACHINERYICOMPANY,"OF AURORA, 'iLLixo-i-siiA L.()l\lU-.

QN *QFILLI I 'iT-i-iRQT TLE-VALVE oR' PORTABLE PNEIUMIATICYMOITORS.

SPECIFICATION forming part of Letters Patent No. 762,933, dated-June 21, '1904; n tion fiiodNoveinhet19' 1903. Serial no. 181,804. (No model.)

"To all whom it may concern:

Be it known that I, R'EINHOLD \NORLING,

a citizen of-the United States, and'a resident of Aurora, in theIcouhty of Kane andState of Illinois; have invented certain new and useful Improvements in Throttle-Valves" for Portable Pneumatic Motors; and I'do hereby declare I that the followingis a full, clear, and exact .drill 'or like tool.

description thereof, reference being had to the accompanying drawings, and to the letters of of this specification. This invention relates to reference marked thereon, whichforma part improvements in throttle-valve s for'pneumatic drills or mechanisms of thatkind embracing a fluid-pressure engine of portable form ,applied to operate a The-invention consists in the pointed out in the appended claims;-

In theaccompanying drawings-Figure 1 is.

a side view of a part ofthe casing ofa pneu matic drill with the throttle -valve attached thereto. Fig. 2 is a v-iewin central longitudinal section of the throttle-valve.

cross-section taken on line 3 3 of Fig.2. Fig 4.

, is a cross-section taken on line 4 4 of Fig. 2".

Asshown in" said drawings,-A indicates part of the casing of a portable pneumatlc motor, and B a supply-pipe through whlch compressed air or other fluid is 'supplied'to' the motor. Said air-supply tube is attached rigidly to and projects from the casing of the motor and will usually constituteone-of the hand'les'of the motor. Insaid airesupply pipe B is formed the throttle-valve, which is operated through the medium of a tubular rotative handle or grip-C, 'mounted' on and surhas anintermediate flat-sided part for the application of a wrench, a projection or nipple which enters the Wall of the casing A, and at its outer end a screw-threaded portionwhich enters and is engaged by the pipe'B. The

part B of the pipe Bis reduced in diameter,

and around the same is placed the rotativo tubular handle or sleeve 0, which is grasped by the hand of the operator using the machine and which may be turned upon the pipe B;

- The tubular handle or sleeve C is shown as held in place on the tubeB by means of a screwthreaded ring 6, applied to the screw-threaded outer end of said pipe B. The'outer end ot' matters here Fig. 3 is a slots formed in the lugs b 'e The plug 1) the'air-chamber'A of the casing. The said ports (Z-d open through theflat outer face or valve-seat on the plug, and in contact with said a flat outer 'face is a rotative valvedisk E,

' which is provided with two ports 0 e, which correspond in position with the ports 2 1]. Es ch. of the portsd (Z inlthe valve-seat and of the ports e eflin the rotative valve-disk is lo cated eccentrically toor at one side of the axis of rotation of the valve-disk, so that by the turning of the disk the ports in the seat may be closed or wholly or partially opened. The said rotative valve-disk E has two lugs in which. are formed -transverse slots 0 e Said lugs e .e" are separated, soas to formbetween them a space or recess adapted to receive the cylindri c stem f on a 'rotative valve actuat- 1 'ing plug F, which is mounted to turn within the pipe B and is connected with the handle C. The stem f is provided witha cross-pin f, which engages at its ends the transverse Said plug F is shown as immediately engaging a thimble (1, which is inserted and secured in the smaller part B of the pipe B and which forms a bear-Z ing-in which the plug rotates. Said. plug is connected 'with the sleeve C by means of a radial stud c,- which passes through acurvcd slot 7), formed in the pipe B, and a like slot g, formed in the thimble G. The rotative plugF is provided witha longit-i'idinal groove F formin )assage for air from the main part of the air-inlet pipe past the said plug to g the 'valve'formed by the valve-disk E;

connected with and adapted to give rotative ally to the, axis of rotation of said disk.

rotative throttle-valve embracing an endwise-' 'rotative throttle-valve, said throttle-valve ernbracing an endwise-facing valve-seat, a rota- It will be imanifest that when the plug F is turned by rotation of the sleeve C it willby reason of being connected with the valve-plate i E by the connections described correspondingly turn said valve-plate, and thus wholly or i by preventing leakage of air when the valve isclosed. H v

I claim as my invention- K v 1. The 'combinationwvith asupply-pipe, of a facing valve-seat provided with a port, a rotativevalve-disk which rests in contact with and is adapted to turn on said valve-seat and is 'alsoprovided with a port, and a rotative tubular handle on the supply-pipe which is movement-to said valve-disk, the ports in the valve-seat and disk being'arran'ged eccentric- 2. The combination with a supply-pipe, of a tive valve-disk resting thereon, and means for operating said valve-disk from the exterior of the supply-pipe, said valve-operating means being loosely connected with said valve-disk so that the prc-ssuie in the supplyape tends to hold the disk against itssaid seat.

3. The combination with asupply-pipc, of a rotary throttle'valve embracing an cndwisefacing valve-seat, a rotative valve-disk resting against said seat, a rotatable sleeve or tubular handle mounted on said supply-pipe, and operative connections between the said tubular handle and the valve-disk which are loosely connected with the valve-disk, so as to permit the pressure in thepipe to hold the disk against its seat.

4. The combination-with a supply-pipe, of arotary throttle-valve, said valve embracing an endwise-facing valve-seat, a valve-disk adapted to rest against said'valve-seat, a rotative sleeve or tubular handle mounted on said supply-pipe, a rotative plug. mounted to turn in the supplypipe and connected with said tubular handle, said plug having a longitudinal passage to permit the passage of air past the same and being connected with the valve-disk by a loose joint alfording endwise ovement of the valve-disk with respect to the plug.

In testimony that I claim the foregoingas my invention I aflix my signature, in presence of two witnesses, this 16th day of November, A. D. 1903.

REINHOL'D A. NORLING.

Witnesses C. E. ERIKsoN, F. A. BURGESS.

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