US914116A

US914116A - Governor for air-compressors.

Info

Publication number: US914116A
Authority: US
Inventors: Eli B Coup
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-12-26
Filing date: 1907-12-26
Publication date: 1909-03-02
Anticipated expiration: 1926-03-02

Description

B. B. COUP.

GOVERNOR FOR AIR OOMPRESSORS.

APPLIOATION FILED DEC. 26. 1907.- 914,1 16, Patented Mar. 2, 1909. 3 SHEETS-SHEET l.

Quucntoz E. B. OOUP.

GOVERNOR FOB AIR oommnssons.

APPLIOATION FILED DEC. 26. 1907.

9 1 4;, 1 1 6 Patented Mar. 2, 1909.

3 SHEETS-SHEET 2.

vwamtoz 13 8 11 woes [w i s B. B. GOUP.

GOVERNOR FOB. AIR OOMPRESSORS.

APPLICATION FILED DEC. 26. 1901.

914; 1 1 6. Patented Mar. 2, 1909.

3 SHEETS-SHEET 3.

. front elevation thereof ELI B. OOUP, OF MCKEESPORT, PENNSYLVANIA.

GOVERNOR FOR AE-GUMJPREESGRS.

No. crane.

Specification of Letters Patent.

Patented March 2, TQOQ.

Application filed December 26, 1907.. Serial No. item.

To all whom it may concern:

Be it known that I, ELI B. Cour, a citizen of the United States of America, residing at McKees ort, in the'county of Allegheny and State of enns lvania, have invented certain. new and use Improvements in Governors for Air-Compressors, of which the following is a specification, reference being bad therein to the accompanyin drawing.

This invention re ates to governors and the object thereof is to provide a overnor in a manner as hereinafter set fort for automatically controlling the operation of an air compressor and the engine operating the compressor when a predetermined pressure stage has been reached to overcome any liability of injury to the compressor or to the engine.

Although the governor is designed primarily for the purpose set forth, yet it is also adapted for any purposesv for which it is found applicable for example, in connection with a compound locomotive for controlling the admission of steam to the locomotive cylinder.

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts, hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within.

the scope of the claims hereunto appended.

In the drawings, Figure 1 is a vertical sectional view of a overnor constructed in accordance with this invention. Fig. 2 isa partly in section, Fig. 3 is a vertical sectional view of the governor valve. Fig. 4. is a top plan showing the ada tation of the governor in connection wit an engine, an air compressor and a receiver. Fig. 5 is a sectional detail of one end of the cylinder of the compressor showing an unloading valve. Fig. .6 is an enlarged View of the unloading valve, and, 7 is a sectional view illustrating a steam controlling device for the engine.

The air receiver A, the air compressor B, the engine C and steam controlling device D shown in Fi 3 are illustrated by way of example so t at the adaptation of the governor in accordance with this invention with the said elements referred to can be thoroughly understood. The air compressor B a valve body I. The head F is furthermore provided with a screw-threaded lug N through which extends a plunger cured a cap P in which extends the lug N and which forms a pressure cham rer R adapted to communicate with the governor in a manner hereinafter explained. In Fig. 7 is shown the steam controlling device which has a pipe connection S with a steam supply. The

provided with a seat S for v'alve S Projecting from the valve body 8 is a steam supply pipe S which communicates with the engine cylinder. The stem of the valve S is indicated by the reference character S and has its outer end pivoted at S to a lever 55 mounted u on a su port S formed integral with the hracket which projects from the valve body S. Formed integral with the bracket S is a cylinder S in which is located a piston S having a piston rod S which is pivotally connected at its outer end at S to the lever S The cylinder 8 communicates with the governor in a manner hereinafter set forth. The elements referred to in this paragraph are of known construction and no claimis made for the same and they are merely shown so that the function of a governor in accordance with this invention can be thoroughly understood. Referring to Figs. 1, 2 and 3 of the drawings, in which is illustrated a governor in accordance with this invention, 1 denotes a bracket which is secured upon the base of the compressor B and the said bracket 1 has formed integral therewith or connected thereto a casmg 2 having its lower'end enlarged at 3 and interiorly threaded at 4; To the enlarged lower end 3 of the casing 2 is secured the upper end of a valve casing 5, the latter being peripherally threaded at 6 for engagement with the threads 4. of the end 3 of the casing 2. The valve casing 5 at its lower end is formed witha pair of lateral nipples 7, 8 which extend in op site directions with respect to each ot er.- The To the head F is se glpe connection S opens into valve casing 5 is furthermore provided with a depending nipple 9; each of the nipples 7, 8 an 9 is interiorly screw-threaded. A pipe 10 is connected to the nip le 7, a pipe 11 connected to the nipple 8 an a pipe 12 attached to the ni ple 9. The pipe 10-leads to the cylinder of the steamcontrolling device. The pipe 11 communicates with the chamber R and the pipe 12 communicates with the receiver A. The pipe 10 communicates with the interior of the valve casing 5 through the medium of the ports 13 the pi e 11 communicates with the interior of t 1e valve casing 5 by the port 14; the pipe 12 opens directly into the lower end of the valve casing 5. The lower end of the valve casing 5 is formed with a valve chamber 15 and a valve seat 16. The function of the valve 16 is to clo se communication between the pipe 12 and the

pipes

10, 11, such function is had when the valve 16 engages the seat 14. The valve 16 is provided with a stem 17 which not only extends through the valve casing 5 but also up and through the casing 2, the latter constituting a guide for the upper portion of the stem 17. The stem 17 is formed with an axial bore 18 which opens at its lower end into a pair of laterally extending orts 19 and at its upper end into a pair of aterally extending ports 20, these latter being termed exhaust ports. The stem 17 is furthermore provided with a plurality of collars 21 for the purpose of guiding the stem within the valve casing 5. The collars 21 are arranged on the lower portion of the valve stem 17. The outer end of the stem 17 is provided with a notch or concavity 22 in which engages a de ending lug 23 projecting from the lower ace of the upper arm of a stirrup 24, the latter being rectangular incontour and surrounding the casing 2 and valve casing 5. The lower arm of the stirrup 24 has depending therefrom a hanger 25 u 011 which are mounted a plurality of weights 26, the function of which will be hereinafter explained. Intermediate the ends of the valve stem 17 a pair of circumferentially extending grooves 27 is provided and adapted to engage in the said grooves is a pin 23 which extends through an o ening provided therefor in the casing 2.

e pin 28 is carried by a resilient'arm 29 fixed to the stud 30 projecting laterally from the valve casing 2. The function of the pin 28 will be hereinafter explained.

It will be assumed that the air in the receiver A has reacheda stage above a predetermined point. It will be evident that the increased pressure in the receiver will cause the shifting of the valve 16 off its seat 14. Such action will establish communication between the

pipes

10, 11 and 12, the pressure upon the valve 16 overcoming the pressure exerted against the stem 17 and the valve 16 by the weighted stirrup 24. As

communication has now been established between the receiver and the pipes 10, 11',

tinuing the operation of the air compressor until the pressure of air in the receiver A becomes normal. When the pressure in the receiver A has been reduced, the valve 16 will be caused to assume its seat through the medium of the weighted stirrup'24. This will allow the exhaust of air from the cylinder S and chamber R through the

ipes

10, 11, ports 19, axial bore 18 and ex" aust ports 20 and allow the engine to again take steam to further operate the compressor. In order that the engine may start slightly in advance of thecompressor the two ports 13 are provided, to rapidly exhaust the air, whereas but a single port l is employed for exhausting the air from .the pipe 11.

To insure a positive movement of the stem 17 the pin 19 and the resilient arm are provided, these two elements holding the stem until a sufficient high or low pressure of air has been obtained to raise or release the stern.

What I claim is:

1. A governor for the urpose set forth comprising a valve casing aving a plurality of nipples at one end, one of said nipples opening directly into the interior of the easing, said casing furthermore provided with a laterally extending port and a air of laterally extending ports, another 0 said nipples communicating with the interior of said valve casin through saidv single port and the other of said nipples communicating with the interior of said valve casing through said air of laterally extending ports, said casin urthcrmore provided with a valve seat helow said ports, a valve normally engaging said seat, a valve stem projecting from the valve and rovided with an axial bore and further provided with upper and lower ports, and a weighted stirru engaging with the valve stem for norma y maintaining the valve in engagement with-its seat.

2. A governor for the urpose set forth comprising a valve casing raving a lurality of nipples at one end, one of sai nipples opening directly into the interior of the easing, said casing furthermore provided with a laterally extending port and a air of laterally extend nng ports, another 0 said nipples communicating with the interior of said valve casing through said single port and the other of said nipples communicating with the 1 extending nipple and the interior of the casinterior of said valve casing through said air of laterally extending orts, said casing rthermore provided wit a valve seat below said ports, a valve normally engaging said seat, a valve stem projectin from the valve and provided with an axial ore and further provlded with upper and lower ports,- a weighted stirru engaging with the valve stem for norma y maintaining the valve in en agement with its seat, said valve adapted to be shifted from its seat by fluid ressure,

said stirrup adapted to shift the va ve to its seat when the pressure is reduced upon, the valve, and spring-pressed means extending in said casing for temporarily holding the stem in its shifted position.

3. A governor for the urposeset forth comprising a valve casing ormed at one end with a depending nipple and with a pair of laterally extending nipples, said depending nipple adapted to communicate with the flui pressure supply, one of said laterally extending nipples adapted to communicate with the steam controllin device of an engine, and the other of sai laterally extending nipples adapted to communicate with the unloa ing valvegmechanism of an air compressor, said casing furthermore rovided with a pair of ports for establishing communication between one of said laterally extending nipples and the interior of'the casing and said casing furthermore provided with a port for establishing communication between the other laterally extending nipple'and the interior'of the casing, said casing further having a valve seat a valve arranged Within said casing and adapted to engage said seat below said ports and whenin engagement with said seat shutting ofl' communication between the laterally extendin nip les and the other of said ni ples, sai va ve shifting from its seat by md ressure whereb communication is establis ed between sai laterally extending nipples and the fluid pressure supply, and spring-pressed means extendin in said casing for normally maintaining sai valve in engagement with its seat.

4. A governor for the urpose set forth comprising a valve casing ormed at one end with a depending nipple and with a pair of laterally extending nipples, said dependin nippleadapted to communicate with the flui pressure supply, one of said laterally extendmg nipples a apted to communicate with the steam controllin device of an engine, and the other of said aterally extending nip les adapted to communicate with the unloadin valve mechanism of an air compressor, sai casing furthermore provided with a pair of ports for establishing communication between one of said laterally extendin nipples and the interior of the casing and sai casing furthermore provided with a port for establishing communication between the other laterally said casing further having a valve seat in belew said ports, avalve arranged within said casing and adapted to engage said seat and when in engagement with said seat shutting ofi communication between the laterally extending nip les and the other of said nipples,

said valve s ifted from its seatby fluid ressure whereby communication is establlshed between said laterally extending nipples and the fluid pressure supply, a valve stem Iproj cote v with the steam contro ing device of an engine, and the other of said laterally extending nipples adapted to communicate with the unloading valve mechanism of an air compressor, said casing furthermore provided with a pair of ports for establishing commu nicatlon between one of said laterally extending nipples and the interior of the casing and said casing furthermore provided with a 7 port for establishing communication between the other laterally extending nip le and the interior of the casing, said casing fiirther having a valve seat below said ports, a valve arranged within said casing and adapted to engage said seat and when in engagement with I said seat shuttin oif communication between the laterally extending nipples and the other of said ni ples, said valve shifted from its seat by fluid ressure whereb communication is established between sai laterally extendin nipples and the fluid pressure supply, a V vs stem rejecting from said va ve and provided wit means for exhausting pressure from said valve casing when the va ve is seated, and a weighted stirrup engaging with said valve stem' for normally maintaining the valve against its seat.

6. A governor for the urpose set forth comprising avalve casing ormed at one end with a depending nipple and with a pair of laterally extending nipples, said depending nipple adapted to communicate with the fluid ressure supply, one of said laterally with the steam contro ling device of an engine, and the other of said laterally extending nipples adapted to communicate with the. unloading valve mechanism of an air compressor, said casing furthermore provided with a pair of ports for establishing communication between one of said laterally extending nipples and the interior of the casing extending nipples adapted to communicatemunication is establis and said casing furthermore provided with a port for establishing communication between the other laterally extending nip le and the interior of the casing, said casing urther having a valve seat below said ports, a valve arranged within said casing and adapted to engage said seat and when in engagement with said seat shutting oil? communication between the laterally extending nipples and the other of said hi ples, said valve shifted from its seat by: fiui ressure whereb comiied between sai laterally extendin nipples and the fluid pressure supply, a va ve stem projecting from said valve and provided with means for exhaust- .3

pressed means extending in said casing for 2Q temporarily holding the valve stem in its adjusted position.

In testimony whereof I aflix my signature in the presence of two witnesses.

ELI B. OUP. Witnesses MAX H. SRoLovITz, C. V. BROOKS.