US1182478A - Steady-rest. - Google Patents

Description

B. M. W. HANSON.

STEADY BEST. APPLICATION FILED OCT-21.1915.

Patented May 9, 1916.

3 SHEETS SHEET I.

Wifmasses rivemmr i. W F f B. M. W. HANSON.

STEADY REST.

APPLICATION FILED 001221. 1915.

Patented May 9, 1916.

3 SHEETS-SHEET 2.

Wfinesses B. M. W. HANSON.

STEADY REST.

APPLICATION FILED OCT. 21. 1915.

Patented May 9, 1916.

3 SHEETS-SHEET 3.

Wifnesses BENGT M. W. HANSON, OF HARTFORD, CONNECTIC UT. ASSEGNOB T0 PRATT & WHITNEY GOMPA'NY,'QF HARTFORD, GONNEC'I'IGUT, A CORPGRATION OF NEW JERSEY.

STEADY REST.

Specification of Letters Patent.

Patented May 191%.

Application filed October .21, 1915. Serial No. 57,101.

To all whom it may concern:

Be it known that 1, Bauer M. W. HAN- sox, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Steady- Rests, of which the following is a specification.

This invention relates to steady-rests, the object being to provide an effective, readilyoperable device of this character, which will substantially and solidly resist the thrust of an article such as the work with which the said steady-rest is associated.

A steady-rest embodying my invention is susceptible of general use, although it is of particular advantage when employed as a part of or in conjunction with a metal-reducing machine, an illustration of which is found in my contemporaneously pending application filed October 21, 1915, Serial No. 57,102.

In the drawings accompanying and forming part of the present specification I have shown in detail one convenient form of embodiment of the invention which to enable those skilled in the art to practise the same will beset forth fully in the following description. I do not limit myself to this particular disclosure; 1 may depart therefrom inseveral respects within the scope of the invention defined by the claims following said description. L

Referring to said drawings: Figure 1 shows a work-carrier and in dotted outline part of the wheel of a grinding-machine, the carrier represented in side elevation, being equipped with a steady-rest involving the invention. Fig. 2 is a front view of said steady-rest. Fig. 3, is a detail view in top plan, of the movable elements of the steadyrest and stops associated therewith. Fig. 4 is a view of the parts shown in Fig. 3 as seen from the left, the dotted lines illustrating work.

Like characters refer to throughout the several views.

In Fig. 1 I have represented the movable carrier 2 and the grinding-wheel 3 of a grinding machine such as disclosed in my said other application, this carrier 2 presenting a suitable support for my steady-rest, al-

like parts tially separated points.

chanically as by spring means. In the present case the elements are movable into work engaging relation by hand and out of working relation by spring means of suitable kind. The different parts of the steady-rest may be mounted in any desirable manner, the supporter body portion a, practically in the form of a block, answering satisfactorily in this connection. This body portion or block 4- virtually straddlesthe movable work-carrier 2 and is connected thereto in some convenient rigid manner, for instance by one or more screws as 5. Within the body portion 4 are mounted the shafts 6 and 7, said shafts being in parallelism and the body portion being provided with suitable bearings to support said shafts for rocking motion. To the shafts 6 and 7 are rigidly connected in some suitable manner the forwardly extending arms 8 and 9 which as illustrated,cross each other. In addition to the arms 8 and 9 the shafts have rigidly fastened thereto the outwardly-extending arms 10 and 11, each shaft with its two arms in the organization showmconstituting one of the elements of the steady-rest to which I have already briefly alluded. The arms 8 and 9 are fur tened faces of the work engaging elements- 12 and 13 are on angles which converge outward,thus providlng a ready means for receiving the work 14 as shown by dotted lines stantly expand said arms 8 and and there- I has been performed. This means may vary in Fig. 4, within the members or jaws 12 and' 13. The work may be positioned on the carrier 2 in any suitable manner; for instance it may be located between centers (not shown) and rotated in any desirable way. These hardened members or jaws 12 and 13 are closed upon the work preferably by the operator, the arms 10 and 11 being providedwith handles 15 to facilitate their operation. As already observed I prefer to close the complemental steady-rest elementsupon the j work by hand and to open them mechanically. To open said elements a sprin as 16 may be utilized, this spring being 0 expanding type and its terminals being seated in mating sockets as'17 on the inner sides of the arms 10 and 11 near their axes of oscillation, the spring exerting a constant tendency to separate or expand the arms 10 and 11 and as a consequence owing to the fact that the arms 8 and 9 are crossed, to conby open the jaws 12 and 13.

The action is as follows: Normally the jaws 12 and 13 will be spread, this relation being maintained by the spring 16. At this time the projection 18 on the arm 8 acting,

as a stop abuts against the hub of the arm 9, thus preventing abnormal opening movement of the jaws 12 and 13. The work having been mounted and having with' the wheel 3 been set in actionfto effect its when the work has been reduced the requi-' site extent or when some similar function decidedly, although adjustable means as the screws 19 and 20, are preferred, the screw 19 being cooperative with the stop arm 21 fastened 'to the shaft 6, while the screw 20 is cooperative with the stop arm 22 fastened to the shaft 7 The screws present as will be evident merely one form of adjustable stops. Others might be substituted therefor. The screws are tapped into the body portion 4 from the outside thereof and their inner ends or tips are in the path of movement of the respective stop arms 21 and 22. It will be clear that when the stop arms ongage the respective screws, further movementof the arms 10 and 11 by the operator will be effectually prevented. By the adjustment of these screws 19 and 20, the amount of movement of the arms, and as a result the extent of closing movement of the jaws 12 and 13 can be regulated. Inview of this condition I can prevent the motion of the jaws 12 and 13 when the work has been reduced to the requisite extent. The body portion 4 is chambered orv hollowed to provide for the necessary motion of the several arms and to position the screws 19 and 20, so that they can coact with the stop arms 21 and 22 respectively.

I may if desired'provide the diamond or equiva lent as:23 to dress the wheel 3, the carrier 24 for said diamond being provided with the customary adjuncts, among which is the hand wheel 25, as is common in grinding machines. The carrier of shank 24 is adjustable and is held in its adjusted positionby the screw 24. Water or something of a similar nature, may be supplied to the grinding zone in any convenient way, as by the pipe 26.

It will be clear from the foregoing description that I provide means such as jaws for engaging work and for applying to the two means or jaws uniform or balanced pressures, the pressures in the present case being toward the work. This result is obtained in the showing made by separately movable manually operable elements which respectively carry the separate means or jaws.

I may if desired, provide for .the rock shafts 6 and 7 the oilers 30 (Fig. 2).

WVhat' I claim is:

1. A steady rest comprising two movable members each having a. jaw to engage the work and each member having a handle portion, the handle portions being so related with each other that they can be simultaneously grasped by the hand and the jaws being rigid with the respective handle portions whereby when the handle portions are moved toward each other the jaws will be directly closed.

2. A steady rest comprising two movable members'each having a jaw to engage the work and each member having a handle portion, the handle portions being so related with each other that they can be simultaneously grasped by the hand to effect the approach of the jaws toward each other, and means settable at will, for arresting the ap proaching movement of the jaws at a predetermined point. Y

A steady rest comprising separate means each movable, for engaging the work at circumferentially separated places, manuallv operable means for simultaneously closing, said means upon the work, and means tending constantly to separate said work-engaging means.

. 4. A steady rest comprising two swinging members having crossed portions at one side of their axes of motion, and handle portions at the other side of said axes, the crossed portions being provided with jaws disposed meagre opposite each other and the handle portions when grasped being adapted to cause the movement of the jaws toward each other.

A steady-rest comprising two movably mounted members each provided with a work-engaging jaw and spring means tending constantly to separate said jaws.

(3. A steady rest comprising two crossed swingingmembers provided with work engaging jaws, manually operable means for closing said jaws, and spring means tending to constantly open said jaws.

7. A steady rest comprising two crossed swinging members provided with work inclosing jaws, manually operable means for closing the jaws, spring means tending constantly to open the jaws, and adjustable means for limiting the amount of closing movement of the jaws.

8. A steady rest comprising two movably mounted members each provided with a work engaging jaw, fixed means for limiting the opening movement of the jaws, adjustable means for limiting the closing movemeat of the jaws, manually operable means for closing the jaws, and spring means tending constantly to open the jaws.

9. A steady rest comprising two rock shafts, arms'rigid with the respective shafts and extending forwardly therefrom, the arms crossing forward of the shafts and being provided with jaws to jointly receive the work, arms rigid with the respective shafts and extending rearwardly therefrom, the last mentioned arms being provided with handles to be simultaneously grasped by the same hand, the spring means tending constantly to act to separate said last mentioned arms, stop arms fastened to the respective shafts, and screws to limit the motion of said stop arms.

In testimony whereof I aflix my signature in presence of two witnesses.

BENGT M. W. HANSON.

Witnesses: W. M. STORES, C. M. GELLERTO

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