US521860A

US521860A - Needle-actuating cam for knitting-machines

Info

Publication number: US521860A
Authority: US
Publication date: 1894-06-26
Anticipated expiration: 1911-06-26

Description

(No Model.)

H A. HOUSEMAN. NEEDLE AGTUATING 0AM FOR KNITTING MACHINES.

No. 521,860. "Patented June 26, 1894.

' lll rasees aaaaaaaaaaaa c4 U ITED STATES PATENT OFFICE.

HARRYA. HOUSEMAN, or PHILADELPlT-IIA, PENNSYLVANIA.

NEEDL E-ACTUATING CAlVl FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 521,860, dated June 26, 1894.

Application filed September 11 1893. S rial No, 485,261. (No model.)

To all whom it may concern.-

Be it known that I, HARRY A. HoUsEMAN, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Needle-Actuating Cams for Knitting-Machines, of which the following is a full, clear, and exact description, reference being had to 'the'accompanying drawings, which form a part of this specification.

My invention relates particularly to the cam cylinder of a knitting machine, and to the construction whereby when the cylinder is reciprocating the needles are switched out of the action of the knitting cam in one movement of the cylinder, and it consists in the arrangement and connection of the switch cam whereby it operates with certainty and is subjected to less wear andis less liable to become deranged than in the ordinaryconstruction. v v

I will first describemy improvement and then particularly point out the same.

In the drawingsFigurel is a perspective View of the cam cylinder. Fig. 2 is a section on line 0ca3, Fig. 1, but with the addition of a needle cylinder in section. Fig. 3 is a diagrammatical view of knitting cams. 1

A is the frame of the cam cylinder, B the needle cylinder, 1) the needles, and O O'the knitting cams.

D, D, are the switch cams, one for each knitting cam.

d is a pin secured to each switch cam which passes through slot 01' in the cam cylinder,

and in which the pin d can have a vertical movement.

E is a pin with the spiral spring e, forced.

upon it by the screw e, and which passes vertically into said slot, the end resting on the pin d. This spring actuated pin E holds the pin d of the switch cam D in position, and

. the cam normally in the position shown in Fig. 3, so that, referring to the right hand the cam 0, allowing the needle to pass by. Whenthe cylinder is moving to the left, the action upon the corresponding switch cams is reversed, and when straight or tubular Work is being done, only one of the knitting cams is in action, and the switch cam corresponding to the other knitting cam carries the needle out of action of the knitting cam. By this method of supporting the switch cams, no strain is directly brought upon the bearing of said cams, they having free play and the point of swing being upon the point where said cams rest upon the knitting cams, and the tension of the spring is more easily kept constant, and the adjustment does not readily become deranged.

Having now fully described my invention,

what I claim, and desire to protect by Letters Patent, is

1. The combination with the knitting cam of a knitting machine, of a switch cam, a pin secured'to said cam, there being an orifice in the cam cylinder in which said pin rests, and a spring actuated pin bearing against said pin.

2. The combination with the knitting cam of a knitting machine, of a switch cam having one end resting against the knitting cam, a pin secured to said cam, there being an orifice in the cam cylinder in which said pin rests, and a spring actuated pin bearing against said. pin.

3. The combination with the knitting cam of a knitting machine, of a switch cam, apin secured to said cam, there being a slot in the cam cylinder, into which said pin passes, and

a vertical spring actuated pin passing down into said slot and resting upon said pin.

4. The combination with the knitting cam of a knitting machine, of a switch cam having one end resting upon said knitting cam, a pin secured to said cam, there being a slot in the cam cylinder into which said pin passes, and a vertical spring actuated pin passing down into said slot and resting upon said pin. In testimony of which inventionI have hereunto set my hand.

HARRY A. HOUSEMANV Witnesses:

GEo. W. REED,

FRA K S. Emma