US1114335A

US1114335A - Pressure-fluid tool.

Info

Publication number: US1114335A
Application number: US57104510A
Authority: US
Inventors: Lewis C Bayles; Albert H Taylor
Original assignee: Ingersoll Rand Co
Current assignee: Ingersoll Rand Co
Priority date: 1910-07-08
Filing date: 1910-07-08
Publication date: 1914-10-20
Anticipated expiration: 1931-10-20

Description

L. O. BAYLES & A. H. TAYLOR.

PRESSURE FLUID TOOL.

APPLICATION FILED JULY 8,1910.

Patented Octx 20; 1914 fiINITED STATESPATENT OFFICE.

Lawrs CQBAYLES, or JoHaNNEsBtmo, TRANSVAAL, AND ALBERT K TAYLOR, or EASTON, PENNSYLVANIA, ASSIGNORS T monnsoLL-NANn COMPANY, or, new YORK, N. Y., A CORPORATION or NEW JERSEY.

PRESSURE-FLUID 'roor.

Specification of Letters Patent.

Patented Oct. 20,1914.

Application filed July 8, 1910. Serial No. 571,045.

To all whom it may concern:

Be it known that we, LEWIS C. llavuzs and Aminn'r H. TAYLOR, citizens of the .United Statenand residents, respectively,

of Johannesburg, 'lransvaal, and of Easton, 1!] the county of Northampton and State of Pennsylvania, have invented a new and usements In the construction, form andoperation of the several parts of a pressure fluid full Improvement in Pressure-Fluid Tools, of which the followlng is a specification.

.Qur invention relates to certain improveactuatcd tool such, for instance, as a hammer drill whereby the construction is materially simplified and the cost -'of the same ehea ened.

*lVlth these ends in view, our invention comprises a pressure fluid actuated tool in which the manually operated controlling or throttle valve for controlling the admission of fluid pressure to both the feed and the tool is located in the valve chest. In this chest is also located the valve for actuating the tool piston and the valve chest also carries the handle for rotating the tool.

A practical embodiment of our invention is represented in the accompanyingdrawings, in which- Figure 1 represents the tool in side elevation, Fig. .2 is a similar view-taken at right angles to Fig. 1, Fig. 3 is a view similar to Fig. 2 with the valve chest and part of the hammer cylinder and feed cylinder shown in longitudinal central section, and Fig. l

is a section taken in the plane of the line AA of Fig. 3, showing the location of the throttle valve and the rotating handle.

The hammer cylinder is denoted by 1; its piston hammer by 2; the front head by- 3 and the-tool steel by 4. The valve chest is denoted by 5 and is located at the inner end of the hammer cylinder 1, a plate 6 being interposed between the chest and hammer cylinder, which plate forms a cover for the valve chest.

supply passage 15 by means ota' manually operated controlling or throttle'valve 16,213

feed cylinder 8, through holes in the valve chest 5 and through holes in the,plate .6, if such a plate is used, and then-through a flange 13 at the inner end of thehammer cylinder 1, thus forming a simple and1ell'ective means for locking the parts together and making the operation of taking the tool apart, a very simple one. o

The valve 7 for controlling the operation of the piston hammer is located in the valve chest 5 and may be of any desired form.f A main pressure fluid inlet passage 14 is provided for the valve 7, which assage is ar ranged to be brought into am out of coinmunieation with the main pressure fluid will be described ter. The motive fluid, exhaust passage 1-7 leads to external atmosphere and is at all times in open. communiw! 75 cation with the piston hammer operating valve 7. The manually operated pressure fluid controlling or throttle valve 16 is seated in the valve chest. 5 which forms a housing therefor. This tl'rottle valve is provided exterior to the valve chest with an 3ov operating handle 18. This throttle valve l6 has a central chamber 19 which is always in open communication with the fluid pressure supply passage. 15, as clearly shown in Fig. 4. 4 i

A port '20 in the throttle valve 16-is arranged to open and close communication between the passages 14 and 15am] a port 21 is arranged to open and-close communi cation between the passage 'lai'and a passage -22 leading to the interior of the feeding cylinder 8. These ports are so arranged that pressure fluid may be fed to the tool" feeding device and to the tool controlling valve to insure the proper working of thei mechanism.

A tool rotating handle 23 is secured l the valve chest 5 as follows :The inner end of the handle is provided with a screw threaded portion 24 and adjacent thereto flfi with'a tapered portion 25. The valve chs tj.

5 is provided withv a tapered hole therethrough for receiving the taperedportion" 25 of the handle 23. A nut 26 is engaged,

with the screw threaded end 24 of the hall.

dlc Q 3 exterior to the valve chest for draw ing the tapered portion of the handle into' snug engagement with its seat lVhile wehay'e shown this invention as applied to a pressure fluid actuated hammer drill, it is to be understood that the invention may be equally .11 applied to fluid pressure tools of various kinds. 7 1 Whatjwe claim is i '1. 'In a'pressure fluid tool, the tool cylinder, its piston, a tool feeding cylinder, its piston, a valve chest located between; the

30 two cylinders, a plate inter osed between the valve chest and tool cylinder forming a cover for the valve chest and bolts engagpiston, a valve chest. located between the two cylinders, a plate interposed between the valve. chest and tool cylinder forming h Intestimony, that we claim the foregoing v as our invention, we have signed our names in presence of two witnesses, this fifth day of July, 1910.

= LEWIS BAYLES.

ing the t\\'o-c ylinders valve chest and plate for securing the valve chest, plate and cylin- 15 ,dersin assembled adjustment. r

I 2. In'a 'pressurefluid tool, the tool cylinder, its piston, a tool'feedingeylinder, its.

ALBERT H. TAYLOR.

Witnesses: I i Y VARD Ranmxn,

' RUSSELL H. Wrunzml.