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US238720A - Waltee scott - Google Patents

Waltee scott Download PDF

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Publication number
US238720A
US238720A US238720DA US238720A US 238720 A US238720 A US 238720A US 238720D A US238720D A US 238720DA US 238720 A US238720 A US 238720A
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Prior art keywords
press
cocks
scott
belt
bed
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/46—Details
    • B41F3/58—Driving, synchronising, or control gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/041—Wound springs with means for modifying the spring characteristics

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  • the nature of my invention consists in combining with the cocks of the cushioning device a connection to the belt-shifting mechanism, so that when the belt is shifted to stop the press the cocks are opened, and the cushioning apparatus does not interfere with the movement of the press by hand, and in starting by power the cocks are closed gradually as the belt'is shifted and the parts begin to move.
  • Figure 1 is a plan view, showing the manner of connecting the beltshifter and the rods to the air-cocks; and Fig. 2 is a vertical section, showing the bed of the press and the cushioning devices.
  • the frame a of the press is of ordinary character, and the bed b is reciprocatcd upon its ways as usual.
  • the cylinders 0 upon the under side of the bed, the pistons 61, supported by the frame a, and the air-cocks e, are of usual character, and their operation is well known.
  • the belt-shifterf is operated by a lever, g, or other convenient device, and between the belt-shifterfand the cocks e there are suitable connecting devices, so that when the belt-shifter is moved to stop the press the air-cocks are opened.
  • a convenient device for this purpose is a rod, Z, attached to each cock, with a crankarm, 71., upon it, and connected by a link, 0, to a lever, r, the other end of which is connected with the belt-shifter f, so that as the beltshifter is moved. endwise the cocks will be opened as the press is stopped, and closed as thepress is started again, thus rendering it unnecessary to manipulate the cooks by hand.
  • Each cock may be provided With an adjustable stop, so that on starting the press the cooks will be closed to a given point, either partially or entirely.
  • I claim as my invention- The combination, with the cushioning-cylinders and pistons in a printing-press and their air-cocks, of connecting devices between said air-cocks and the belt-shifting mechanism, whereby the air-cocks are opened by the mechanism that stops the press and closed or partially closed in starting the press, substantially as set forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

(No Model.)
' W. SCOTT. Cushioning Devioe'for Printing'Presses.
No. 238,720. Patented March 8,1881.
NJFETERS, PuoTo-LITHOGRAPMER, WASHINGTON, D C.
UNITED STATES PATENT OFFICE.
WALTER SCOTT, OF PLAINFIELD, NEW JERSEY.
CUSHIONING DEVICE FOR PRINTING-PRESSES.
SPECIFICATION 'forming part of Letters Patent No. 238,720, dated March 8, 1881.
Application filed January 8, 1881. (No model.)
T 0 all whom it may concern Be it known that I, WVALTER SCOTT, of Plainfield, in the county of Union and State of New Jersey, have invented an Improvement in Cushioning Devices for Printing-Presses, of which the following is a specification.
In printing-presses having a reciprocating bed there have been cylinders upon the bed passing upon pistons that are stationary upon the frame, and the confined air has acted as a cushion to stop the momentum of the bed and lessen the concussion or strain in changing the direction of motion of the bed. In presses of this kind cocks have been provided that regulate the escape of air, so as to confine more or less air, according to the speed of the press. These cocks are usually adjusted by hand; but in some instances a governor has been combined with them. In printing, the press is often stopped and the, bed moved by hand very slowly in adjusting the parts. If this is done with the cocks partially or entirely closed, the accumulated atmospheric pressure prevents the press being moved at the end of the stroke, and the attendant has to go to the cocks and open them to complete the movement of the press by hand. This is a loss of time, and objectionable. Furthermore, if the press is started by power, it sometimes moves slowly, and the cushioning is too much and checks the movement of the bed.
The nature of my invention consists in combining with the cocks of the cushioning device a connection to the belt-shifting mechanism, so that when the belt is shifted to stop the press the cocks are opened, and the cushioning apparatus does not interfere with the movement of the press by hand, and in starting by power the cocks are closed gradually as the belt'is shifted and the parts begin to move.
In the drawings, Figure 1 is a plan view, showing the manner of connecting the beltshifter and the rods to the air-cocks; and Fig. 2 is a vertical section, showing the bed of the press and the cushioning devices.
The frame a of the press is of ordinary character, and the bed b is reciprocatcd upon its ways as usual.
The cylinders 0 upon the under side of the bed, the pistons 61, supported by the frame a, and the air-cocks e, are of usual character, and their operation is well known.
The belt-shifterfis operated by a lever, g, or other convenient device, and between the belt-shifterfand the cocks e there are suitable connecting devices, so that when the belt-shifter is moved to stop the press the air-cocks are opened. A convenient device for this purpose is a rod, Z, attached to each cock, with a crankarm, 71., upon it, and connected by a link, 0, to a lever, r, the other end of which is connected with the belt-shifter f, so that as the beltshifter is moved. endwise the cocks will be opened as the press is stopped, and closed as thepress is started again, thus rendering it unnecessary to manipulate the cooks by hand.
Each cock may be provided With an adjustable stop, so that on starting the press the cooks will be closed to a given point, either partially or entirely.
The peculiar shape and positions of the mechanism connecting the aircocks to the belt-shifter will vary according to the construction of the press.
I claim as my invention- The combination, with the cushioning-cylinders and pistons in a printing-press and their air-cocks, of connecting devices between said air-cocks and the belt-shifting mechanism, whereby the air-cocks are opened by the mechanism that stops the press and closed or partially closed in starting the press, substantially as set forth.
Signed by me this 30th day of December, A. D. 1880.
WALTER SCOTT.
Witnesses:
D. T. LYONS, GEORGE R. W. KITTSON.
US238720D Waltee scott Expired - Lifetime US238720A (en)

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