US1000769A - Cushioning attachment for power-hammers. - Google Patents

Cushioning attachment for power-hammers. Download PDF

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Publication number
US1000769A
US1000769A US60470311A US1911604703A US1000769A US 1000769 A US1000769 A US 1000769A US 60470311 A US60470311 A US 60470311A US 1911604703 A US1911604703 A US 1911604703A US 1000769 A US1000769 A US 1000769A
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cushioning
piston
cylinder
power
hammers
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US60470311A
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Charles L Bockus
Reinhold G Hausdorfer
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/22—Drives for hammers; Transmission means therefor for power hammers
    • B21J7/24—Drives for hammers; Transmission means therefor for power hammers operated by steam, air, or other gaseous pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve

Definitions

  • This invention relates to power hammers.
  • the hammer piston 1 and the hammer cylinder 2 are of the standard constructionof upright cylinder with piston moving vertically therein, into which steam is admitted under the piston and above the piston from that can reciprocate in an independent cylinder 7 secured to the upper end of the main cylinder.
  • the independent cylinder 7 is furnished with steam through pipe 8 which reaches from the main feed pipe 3 and is inclined upward from its receiving end to the end where it delivers into the cylinder 7 just above the upper surface of the piston 6 when the piston 6 is at.i.ts lowermost position.
  • the piston 6 acts as a valve to close the passage between the cylinder 7 and the cylinder 2.
  • mer having in combination with a main cylinder a. piston reciprocating therein, a cushioning cylinder located above andhaving a passage connecting with said main cylinder. the said cushioning cylinder provided with an auxiliary chamber at its top, a cushioning piston reciprocating in said cushioning cylinder, a stem attached to said cushioning piston reciprocating in said passage between the two cylinders. somewhat spaced from the confining wall of said passage and adapted to be engaged by the pis ton of the main cylinder. :1 second stem attached to the opposite side of said piston and adapted to reciprocate in said auxiliary chamber as a guide.
  • a cushioning piston for a power ham- Iner having in combination with main cylinder a piston reciprocatingtherein, a cushioning cylinder located above and having a passage communicating with the main cylinder, a cushioning piston reciprocating in said cushioning cylinder, a stem attached to said cushioning piston reciprocating loosely in said passage communicating be tween the two cylinders and adapted to be engaged by the piston of the main cylinder, and a steam inlet port arranged to admit steam into said cushioning cylinder above the cushioning piston, thesaid cushioning piston and stem being thereby adapted to act as a valve controlling the passage com-,
  • a cushioning piston for a power hamcylinder a piston reciprocating therein, a cushioning cylinder located above and having a passage communicating with said main cylinder, a cushioning piston reciprocating in said cushioning cylinder, a stem attached to said piston, reciprocating loosely in said passage communicating between the cylinders, and adapted to be engaged by the piston of the main cylinder, means for introducing oil above said cushioning piston, and a steam inlet port arranged to adeating in said cushioning cylinder, a stem through said passage into the main cylinder and adapted to be engaged by the piston and main cylinder, and an independent supply of steam admitted into the cushioning cylinder just above the cushioning piston when atrest, said cushioning piston being thereby adapted, in its initial movement upward, to cut offthe steam supply and en-' trap the steamin the cushioning cylinder as a cushioning element, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

0. L. BOGKUS & R. GJHAUSDORPER:
GUSHIONING ATTACHMENT FOR POWER HAMMERS.
APPLICATION FILED JAN. 26, 1911 Patented Aug. 15, 1911.
Fig. 1
ncense.
U IT L T CHARLES L. BDCKUS, F DETROIT,
MICHIGAN, AND REINHOLD G. HAUSDORFER, 0F TOLEDO, OHIO.
CUSEIONIN'G ATTACHMENT FOR POWER-HAMIKERS.
Specification of Letters Patent. Patggni gfi Aug, 15., 1911,
Application filed. January 26, 1911. Serial No. 604,703.
' HAI'SDORFER, a citizen of the United States,
residing at Toledo, county of Lucas, State of Ohio, have invented a certain new and useful Improvement in Cushioning Attachments for Power-Hammers, 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 accompanyingdrawings, which form a part of this specification.
This invention relates to power hammers.
It has for its object an improved cushioning attachment adapted to cushion the hammer on the up or return stroke, after the blow has been given.
In the drawings :-Figure 1, is a side elevation of the hammer cylinder, and the cushioningattachment thereto. Fig. 2, is a sectional elevation of the cushioning attachment. Fig. 3, is a side elevation of the cushioning piston.
The hammer piston 1 and the hammer cylinder 2 are of the standard constructionof upright cylinder with piston moving vertically therein, into which steam is admitted under the piston and above the piston from that can reciprocate in an independent cylinder 7 secured to the upper end of the main cylinder. The independent cylinder 7 is furnished with steam through pipe 8 which reaches from the main feed pipe 3 and is inclined upward from its receiving end to the end where it delivers into the cylinder 7 just above the upper surface of the piston 6 when the piston 6 is at.i.ts lowermost position. The piston 6 acts as a valve to close the passage between the cylinder 7 and the cylinder 2. As soon as the main piston engagesthe cushioning piston and lifts it very slightly, the port-through whlch the steam enters from the pipe-8 is closed, the chamber still containing aquantity of'steam at boiler pressure which compresses and acts as a cushion to prevent any injurious result from the too sudden lift or the too great liftof the hammer piston.
Provision for the admission of oil is made through pipe 9 which leads directly into chamber 10, which chamber is a guide for the stem 11 of the cushioning piston 6: the oil admitted through the pipe 9 lubricates not only the cushioning piston but also the.
mer, having in combination with a main cylinder a. piston reciprocating therein, a cushioning cylinder located above andhaving a passage connecting with said main cylinder. the said cushioning cylinder provided with an auxiliary chamber at its top, a cushioning piston reciprocating in said cushioning cylinder, a stem attached to said cushioning piston reciprocating in said passage between the two cylinders. somewhat spaced from the confining wall of said passage and adapted to be engaged by the pis ton of the main cylinder. :1 second stem attached to the opposite side of said piston and adapted to reciprocate in said auxiliary chamber as a guide. and a steam inlet port arranged to admit steam into said cushioning cylinder above the cushioningpiston, the said cushioning piston and first-mentioned stem being thereby adapted to act as a valve controlling the passage between the two cylinders and about the first-mentioned stem. substantially as described.
2. In combination with a main cylinder, a power hammer, a cushioning cylinder. arranged above the inain cylinder, a cushioning piston reciprocating .in said cushioning cylinder, a piston reciprocating in the mainL cylinder, a stem projecting from said cushing piston into the main cylinder, adapted to be engaged by the piston therein, means for introducing and exhausting steam from above the cushioning cylinder, the head of the cushioning cylinder having a chamber and an oil pipe leading thereinto, and a sec- I mer, having in combination with a main the top of the cushioning piston and reciprocating in said chamber, whereby oil may be introduced into the cushioning cylinder, lubricating the cushioning piston, and thence find its way into the main cylinder lubrieating its piston, substantially as described.
3. A cushioning piston for a power ham- Iner, having in combination with main cylinder a piston reciprocatingtherein, a cushioning cylinder located above and having a passage communicating with the main cylinder, a cushioning piston reciprocating in said cushioning cylinder, a stem attached to said cushioning piston reciprocating loosely in said passage communicating be tween the two cylinders and adapted to be engaged by the piston of the main cylinder, and a steam inlet port arranged to admit steam into said cushioning cylinder above the cushioning piston, thesaid cushioning piston and stem being thereby adapted to act as a valve controlling the passage com-,
municating between the two cylinders, substantially as described.
4. A cushioning piston for a power hamcylinder a piston reciprocating therein, a cushioning cylinder located above and having a passage communicating with said main cylinder, a cushioning piston reciprocating in said cushioning cylinder, a stem attached to said piston, reciprocating loosely in said passage communicating between the cylinders, and adapted to be engaged by the piston of the main cylinder, means for introducing oil above said cushioning piston, and a steam inlet port arranged to adeating in said cushioning cylinder, a stem through said passage into the main cylinder and adapted to be engaged by the piston and main cylinder, and an independent supply of steam admitted into the cushioning cylinder just above the cushioning piston when atrest, said cushioning piston being thereby adapted, in its initial movement upward, to cut offthe steam supply and en-' trap the steamin the cushioning cylinder as a cushioning element, substantially as described.
In testimony whereof, we sign this speci- I fication in the presence of two witnesses.
CHARLES L. BOGKUS. REINHOLD G. HAUSDORFER. Witnesses:
LOTTA LEE BRAY, R. A. PA KER.
depending from said cushioning pistongz
US60470311A 1911-01-26 1911-01-26 Cushioning attachment for power-hammers. Expired - Lifetime US1000769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US60470311A US1000769A (en) 1911-01-26 1911-01-26 Cushioning attachment for power-hammers.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60470311A US1000769A (en) 1911-01-26 1911-01-26 Cushioning attachment for power-hammers.

Publications (1)

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US1000769A true US1000769A (en) 1911-08-15

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