US1796040A - Eccentric connection for card condensers - Google Patents

Description

March 10, 1931. J WNSHULL 1,796,040

ECCENTRIC CONNECTION FOR CARD CONDENSERS Filed July 5. 1929 FIE. 5. INVENTOR.

ATTORNEYS.

Patented Mar. 10, 1931 UNITED STATES PATENT OFFICE.

JOHN A. MINSHULL, OF WHITINSVILLE, MASSACHUSETTS, ASSIGNOR T WHITIN MA- CHINE WORKS, OF WHITINSVILLE, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS ECCENTRIC CONNECTION FOR CARD CONDENSERS Application filed July 3,

This invention relates to an eccentric connector capable of general application but particularly designed for use in a card condenser.

In such machines, the apron rolls are oscillatcd or reciprocated axially at high speed,

the number of reciprocations being commonly above 300 per minute.

Eccentric connections have been used to produce such reciprocations, but trouble has been encountered from overheating if the rate of reciprocation was increased substantially above 300 reciprocations per minute.

This was a serious limitation, as an increase in the speed of reciprocation of the apron rolls was frequently very desirable.

A general object of my invention is to provide a form of eccentric connector operable at a higher speed than the old form of connector and without overheating.

A further object is to provide for more eilective and reliable lubrication of such an eccentric connector.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a plan view of my improved eccentric connector, together with portions of a card condenser;

Fig. 2 is a side elevation, partly in section, of the construction shown in Fig. 1 and Fig. 3 is an end view of one of the eccentric members, looking in the direction of the arrow 3 in Fig. 1.

Referring to the drawings, I have inclicated a portion of apair of aprons 10 and 12, mounted upon suitable rolls 13 secured at one end in a cross head 15, by which said rolls and aprons may be reciprocated. A drive shaft 20 is mounted to rotate about an axis perpendicular to the plane of movement of the aprons and is provided with an adpistable double eccentric for each apron.

The two parts of each eccentric may be relatively adjusted to vary the throw of the eccentrio and thus determine the amount of reciproeating movement of each apron, but the details of construction of the adjustable eccen- 1929. Serial No. 375,690.

trics form no part of my present invention and need not be further described.

My improved eccentric connector comprises eccentric members 30 and 32 which are secured together in definite spaced relation by binding bolts 34 and a plurality of nuts 36, some of which act as lock nuts.

The eccentric member 30 is adjustably secured to the shank 410 of a member tl, pivoted to the cross head 15 by a stud 42. The parts 30 and 10 may be adjusta-bly secured to each other by set screws 44 or in any other convenient manner.

It will be noted that each of the eccentric members 30 and 32 engage the eccentric over somewhat less than one third of its circumference and that consequently somewhat more than one third of the surface of the eccentric member isfree at all times when the machine is in operation. This in itself tends to a cooler running of the eccentric, as somewhat more than one third of its circumferenceis at all 1 times exposed to the atmosphere. I

I have also provided novel and very effective oiling means for my improved eccentric connector. For this purpose I provide an oil well or recess 50 in the upper side of each eccentric member 30 or 32, this oil chamber extending down substantially to the center of the thickness of the connector and having an oil hole 52 leading from each end of the oil well to a portion of wick or other similar material 54, secured to the ends of the eccentric members 30 and 32 by clamps 56 and screws 57, or in any other convenient manner.

As these eccentrics commonly oscillate in a horizontal plane and are driven by a vertical shaft, the oil chambers 50 in the upper faces thereof are well adapted to receive and distribute the necessary lubricant. The oil is conveyed through the oil passages 52 to the wicks 54 by which a thin film of oil is transferred direct to the surface of the eccentric.

While an oil connection and wick at the leading side of each eccentric member might be sufficient Where an eccentric is always rotated in a single direction, I find it desirable to use an oil passage and wick at each side of the connector, thus making the device reversible and also providing for wiping the eccentric as it leaves the eccentric member, as well as for providing oil to the eccentric as it enters the'bearingportion of the eccentric member. 5 The second wick tends to retain the oil in the bearing segment between each eccentric member and the rotating eccentric and to keepthe eccentric wiped clean of oil and dust when; open to the atmosphere. 7 Ithasbeen found that an eccentric connection of the type above described is capable of use at a substantially higher. speed than the old typeof connector. Under actual test my improved connector runs without overheating at 450 R. P. M. and would apparently'run at a substantially greater speed, while the old type of connector began to seriously overheat it run above 325 R. P. M. Having thus described my invention and the advantages thereof, I do not wish 'to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I- claim is 1.'In a connector for a driving eccentric 25. operable in a horizontal plane .and comprising a pair of connecting members and means to secure said members in spaced relation, lubricating means for said members and eccentric comprising an open oil well in the upper side of each connecting member, and means to distribute oil from said wells to the bearing-surfaces of said member and said eccentric. I e s 2. A connector'for'a driving eccentric op- 135 erable in a horizontal plane and comprising a pair of connecting members, means to secure said members inspaced relation, and means" to lubricate said members and eccentric, said lubricating means comprising an oil well in 40 the upper side of each connecting member, and a piece of wick material secured to each end of each connecting member, said member having oil passages connectingsaid oil well to eachpiece of wick material. e 3. A connector for adriving eccentric operable in a horizontal plane andcomprising a pair of connectingmembers, means to secure said members in spaced relation, and means to lubricate said members and eccentric, said 0 lubricating meanscomprisinga Wiping elementsecured to each end of each connecting member, and means to supply oilthroug'h said wiping elementsto said eccentric, certainof said wiping elements being also operable to remove excess-oil from the bearing surface ofsaid eccentric as it leaves bearing-engagement witheach of said connecting members.

In testimony whereof I have hereunto atfixed my signature.

r JOHN A. -MINSHULL.

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