US1465057A

US1465057A - Jack

Info

Publication number: US1465057A
Application number: US366651A
Authority: US
Inventors: Malcolm D Riker
Original assignee: MCKIERNAN TERRY DRILL Co
Current assignee: MCKIERNAN TERRY DRILL Co; MCKIERNAN-TERRY DRILL Co
Priority date: 1920-03-25
Filing date: 1920-03-25
Publication date: 1923-08-14
Anticipated expiration: 1940-08-14

Description

Aug. -14, 1923.

M. D. RIKER JACK Filed March 25 HWK? a f Patented ug. 1d, 19.

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application med March 25, w20. Serial No. tll.

To all fwwm t may concern.'

Be it known that I, MALCOLM D. Rime, a citizen of the United States of America, and a resident of Dover, county of Morris, and State of N ew Jersey, have invented certain new and useful lm rovements in dacks, of which the following 1s a specication.

rlhe obects of the present invention are to provi e a lifting jack of particularly light, compact, simple and oweriul construction and especially suite to automobile needs.

The invention involves a number of novel. features of construction, combinations and arrangements of parts, as will be hereinafter disclosed in detail.

In the drawing accompanying and torming a part of this specification, have illustrated the invention embodied Vin one of its simple, practical forms, but wish it under-- stood that the structure may bemodified without departure from the true spirit and scope of the invention.

1n the drawing referred to, Figure 1 is a vertical sectional view of the complete jack.

Figure 2 is a view looki at the right hand side of Figure 1, with portions of the jack broken away and shownv in section.

Figure 3 is a horizontal sectional view taken on substantially the plane of line 3 3 of Figure 1.

Figure 4 is another horizontal sectional view taken on substantially the plane of .line lr-4c of Figure 2.

One of the special features of the invention is the making of the supporting post and the extensible sleeve or column of two sections of commercial cylindrical tubing cut to the proper length and arranged to slide, one over the other. The inner section of tubing, which constitutes the tubular supporting post is designated 5 and the surrounding sleeve is designated 6. The supporting post is provided with a suitable base, such as 1 have indicated at 7 and to which the ost is shown as secured by means ci a wel ed joint 8. The sleeve is non-rotatably but slidably e aged on the post by indenting op osite si e portions at the lower en d thereoii; as indicated at 9, to provide flattened parts sliding over oppositely indented flattened side rtions 10 oi' the post which extend throng out the length thereof.

'.lhe sleeve carries the lifting head 11, which 1s shown as set in the upper end of the sleeve and secured thereto oy the welded. Joint at 12. The sleeve may also be provided wlth an outstanding foot or step 13 for engagement beneath relatively low objects, or 1n glaces where the lifting head cannot be use v The sleeve is operated by a. screw 1d hav- 1n a'bearing in the nut 15.

1s nut 1s supported in the upper end or the tubular post and is shown as nonrotatably engaged .therein by having the radial webs. 16 engaging in the top of the post and bearing against the cylindrical inner surfaces of the post at op osite sides of the iiattened portions thereo (1F ig. 3). Thie nut furthermore is shown as tixedly secured 1n the end of the ost by means of a portion 17 of the wall cio the post indented into a pocket .18 formed in one of the webs et the nut, sald wall bein thus indented over the shoulder provided the pocket in the nut by means of a suitab e tool inserted through an opening 19 provided in the outer sleeve.

The screw has a rotating connection with thehead and is also provided with means by which it may be turned one way or the other. The means illustrated for this purpose cornprises a bevel pinion 20 which maybe formed intefgral with tl sew and which is shown as orm'ing a s ou er enga the under side of the supporting headgmdgn anti-friction washer 2l may 'e interposed between the shoulder thus provided and the under `side of the head and the screw is shown as formed with a spindle extension 22 bearing ln adsocket provided in the under side oi the rllhe driving means for the screw is shown in the form et an operating shaft 23 carrying a bevel gear 24: at its inner end engaging the ear on the screw.

' 'll e oeratin shaft is shown as journaled in a bus ing 25 aving a reduced cylindrical extension 26 seated in the o ening provided in the wall et the sleeve an an outstanding annular Bange 27 overlyin the 4outer :tace of the sleeve and secured t ereto by means of a welded joint 28.

rlihe construction disclosed, while relatively light and simple, is very powerful and is small and compact so that it y easily tid Sii

be carried and handled. A articular feature is the ease with which t e device may be made up and assembled.. The tubular ost is secured to its base and the supporting head is secured in the upper end of the sleeve. The under surface of the suiptporting head need not be faced off until a er it is secured in the sleeve. This insuresthe provision of a tr'ue bearing surface for the shouldered portion of the lifting screw. After thespindle at the upper end of the screw is engaged in its seat the gear 24 is positioned and. engaged on the inner end of the operatin shaft, which end may be squared or ot erwise shaped to key the gear thereon, the gear being held in position, for instance, by means of a set screw 29.

Provision is made for entering the nut within the sleeve by forming it with recessed or Iiattened portions 30 at opposite sides thereof, said recees being of such a depth as to pass the indented or attened portions at the lower end of the sleeve. After being thus entered in the sleeve, the nut is turned, substantially at right a les in this instance, to bring the outstan webs thereof into position to stand at o posite sides of the flattened portions of t e post, whereupon the nut can be properly seated in the end ofthe ost. In this assembled position, it will seen that the iiattened portions 30 of the nut are out of line with the indented portions of the sleeve and that the remaining portions of the nut which, as shown inFi l e 3, are cylindrical, will overstand the in ented portions of the sleeve and form a bearing for the sleeve in its slidin movements over the post. These overstan g c lindrical portions, therefore provide stops ger limiting the rejection o the sleeve over the post and t e anchoring of the nut by the means described positively prevents the separation of the sleeve from the ost.

at I claim is:

1. In a jack, the combination with a tubular post having an elongated indented por.` tion, a tubular sleeve slidably engeaed over the post and having a short inden portion slidably engaging the indented portion of .the post, a nut supported by the post and having a reduced portion movable past the indented part of the sleeve, means for 'securing the nut to the post with said reduced portion out of line with the indentation of the sleeve, a screw engaged with the nut and connected with the sleeve and means for operating said screw.

2. In a jack, a tubular post, a sleeve slidably engaged over'the post, said poet .and sleeve having portions of reduced diameter slidably engaging to prevent rotation of the sleeve on t e post, a screw connected-with thesleeve, a nut .for said screw supported y by the post and having a portion of sifscienuy reduiaismer te pass the re.

duced portion of the sleeve and said nut having a part received in the and enwith the portion of lesser diameter to o d e nut wit the reduced portion .thereof out of line with the reduced portion of the sleeve. Y

3. In a jack, a tubular post, a sleeve slidably engaged over the post, said post and sleeve having rtions of reduced diameter slidably engaging to prevent rotation of the sleeve on t e post, a screw connected with the sleeve, a nut for said screw supported by the post and having a portion of suiciently reduced diameter to pass the reduced portion of the sleeve and said nut having a part received in the post and engagii Y with the rtion of lesser diameter 'to the nut with the reduced portion thereof out of line with the reduced portion of the sleeve and means for securing the nut inV auch 'tion. l y

4. a jack, a tubular post, a sleeve slidably engaged over the post, said post and sleeve having portions of reduced diameter slidably e g to prevent rotation ofthe sleeve on t e post, a screw connected with the sleeve, a nut for said screw supported by the post and having a portion of suliiciently reduced diameter to pass the reduced portion of the sleeve and said nut having a part -received in the post and engaging `with the portion of lesser diameter to hold the nut with the reduced portion thereof out of line with the reduced portion of the sleeve and means for securing the nut in such position gilt com risin a portion of the wall ofh the in en into engagement wit a shoulder on the nut.

5. In a jack, a tubular post, a sleeve slidably engaged over the' post, said post and sleeve having ortions of reduced diameter slidably engaging to prevent rotation of the sleeve on t e post, a screw connected with the sleeve, a nut for said screw supported by the post and having a portion of suiciently reduced diameter to pass the reduced portion of the sleeve and said nut having a part received in the post and vengagin with the portion of lesser diameter to lio d the nut with the reduced portion thereof out of line with the reduced portion of the sleeve and means for securing the nut in such position and compr' a portion of the wall of the t indente into engagement with a shoul er on the nut, the sleeve having an opening therein providing access for a tool for thus mdenting the post into engagement with the nut. l

6. Ina Jack, a tubular post havin ilattened sldesha sleeve slidably engage over thel -said sleeve having short indented portions near one endvarranged to cooperate .with the ilattened sides of the post, a lifting head aixed to the other end of the sleeve, a screw connected with the sleeve, in the ost and engaging with the fiattened and a nut for the screw, said nut having a sides t ereof to hold the nut with its fiatpart of greater diameter than the inside. tened portions out of line with the indented 1U diameter of the post, adapted to rest on portions of the sleeve.

5 the top of the post, Opposite portions of said In Witnese whereof, have hereunto set post being flattened to clear the indented my hand, thls 23rd day 0f March 1920- portions of the sleeve, and a part received MALCOLM D. BIKER.