US241702A - Air-cushion compression-cylinder for pressure-rollers - Google Patents

Air-cushion compression-cylinder for pressure-rollers Download PDF

Info

Publication number
US241702A
US241702A US241702DA US241702A US 241702 A US241702 A US 241702A US 241702D A US241702D A US 241702DA US 241702 A US241702 A US 241702A
Authority
US
United States
Prior art keywords
air
rollers
pressure
cylinder
cylinders
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
Application granted granted Critical
Publication of US241702A publication Critical patent/US241702A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/18—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like
    • B26D3/185—Grid like cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6587—Including plural, laterally spaced tools
    • Y10T83/6588—Tools mounted on common tool support

Definitions

  • Figure 1 represents a vertical section of the upper part of a gangsaw mill taken through the centers of twin air-cushion com pression-cylinders ll, combined with the rollers 12 n.
  • Fig. 2 is a front elevation of the upper part of the mill, having my improvement in connection with the rollers an.
  • a A represent the housings, between which the gang-saw frame I), provided with saws B, has its up-and down movements in the slides a 0.
  • Twin cushion compression-cylinders Z Z are permanently connected with the cap A, which connects the upper ends of the housings 0 A A.
  • Thesecylinders have pistons h h, which are provided with rods f f, the lower ends of which .have a permanent connection with the stocks f f of the pressure-rollers a n.
  • the cylinders l l have air-chests z i, which are con- 3 5 nected together by means of the pipe it.
  • valves 0 which are operated by means of the levers p p, for directing the air into either end of the cylinders, as may be required, for pressing the rollers downward or raising them upward.
  • the pressure of lhe air is controlled bymeans of the safety-valve q, placed at the point of connection. of the airinduction pipe t with the pipe t.
  • the cylinders l I having air-chests i i, provided with valves 0 0,.and connected together by means of the air-pipe t, having an inductionpipe, t, substantially as and for the purpose above described.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Invalid Beds And Related Equipment (AREA)

Description

Patented May 17, 1881.
G. W. NICHOLS. Air Cushion Compression Cylinders for Pressure Rollers.
mmy
QII
(No Model.)
' c zrmiqre n m m m w n E n P N UNITED STATES PATENT OFFICE.
GEORGE W. NICHOLS, OF CLINTON, ASSIGNOR OF ONE-HALF TO THE NOV- ELTYIRON WORKS, OF DUBUQUE, IOWA.
AIR-CUSHION COMPRESSION-CYLlNDER FOR PRESSURE-ROLLERS.
SPECIFICATION forming part of Letters Patent No. 241,702, dated May 17, 1881..
Application filed October 4, 1880. (N model.)
In the accompanying drawings, which make a part of this specification,Figure 1 represents a vertical section of the upper part of a gangsaw mill taken through the centers of twin air-cushion com pression-cylinders ll, combined with the rollers 12 n. Fig. 2 is a front elevation of the upper part of the mill, having my improvement in connection with the rollers an.
dicatethe same parts.
A A represent the housings, between which the gang-saw frame I), provided with saws B, has its up-and down movements in the slides a 0. Twin cushion compression-cylinders Z Z are permanently connected with the cap A, which connects the upper ends of the housings 0 A A. Thesecylindershave pistons h h, which are provided with rods f f, the lower ends of which .have a permanent connection with the stocks f f of the pressure-rollers a n. The cylinders l l have air-chests z i, which are con- 3 5 nected together by means of the pipe it. These chests have valves 0 0, which are operated by means of the levers p p, for directing the air into either end of the cylinders, as may be required, for pressing the rollers downward or raising them upward. The pressure of lhe air is controlled bymeans of the safety-valve q, placed at the point of connection. of the airinduction pipe t with the pipe t.
I do not confine myself to the mode above described of supplying the compression-cylinders with air, as other modes may answer the purpose and produce the same results.
It will plainly appear that, as there is an equal pressure of air upon the pistons h h during all the changes in the height, the pressurerollers n n will have a uniform force at all times upon the timber being sawed, however crooked its upper surface may be in its longitudinal direction, whereas steel or rubber springs exert an uneven force upon such a surface, and are therefore unsuitable for the purpose. Like letters of reference in both figures iu- I claim as my invention- The combination of twin air-cushion compression-cylinders Z Z, having pistons 71. h, with the pressure-rollers n n of a gang-saw mill, the cylinders l I having air-chests i i, provided with valves 0 0,.and connected together by means of the air-pipe t, having an inductionpipe, t, substantially as and for the purpose above described.
GEORGE W. NICHOLS.
Witnesses:
, CHARLES W. CHASE, LE R01 B. WADLEIGH.
all
US241702D Air-cushion compression-cylinder for pressure-rollers Expired - Lifetime US241702A (en)

Publications (1)

Publication Number Publication Date
US241702A true US241702A (en) 1881-05-17

Family

ID=2311038

Family Applications (1)

Application Number Title Priority Date Filing Date
US241702D Expired - Lifetime US241702A (en) Air-cushion compression-cylinder for pressure-rollers

Country Status (1)

Country Link
US (1) US241702A (en)

Similar Documents

Publication Publication Date Title
US241702A (en) Air-cushion compression-cylinder for pressure-rollers
US552710A (en) Feries
US846839A (en) Log-splitting machine.
US241701A (en) Air-cushion compression-cylinder for gang-saws
US385356A (en) Copying-press
US58478A (en) Improvement in steam-engines
US502313A (en) Joshua l
US846838A (en) Log-splitting machine.
US133497A (en) Improvement
US241699A (en) Gang-saw mill
US827833A (en) Means for compressing bales.
US153289A (en) Improvement in cotton-presses
US699085A (en) Log-turner.
US542598A (en) Double or sectional planing-machine
US233755A (en) Eapids
US1112146A (en) Pig-breaking machine.
US654743A (en) Stone-cutting machine.
US579779A (en) thomas
US802128A (en) Press.
US906329A (en) Leather-rolling machine.
US271956A (en) Sheet metal shearing machine
US305705A (en) Chaeles m
US441821A (en) Machine for rolling leather
US583941A (en) Molding apparatus
US431738A (en) blackman