US1854966A

US1854966A - Truck

Info

Publication number: US1854966A
Application number: US517273A
Authority: US
Inventors: Kenneth J Unwin
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 1931-02-20
Filing date: 1931-02-20
Publication date: 1932-04-19
Anticipated expiration: 1949-04-19

Description

K. J. UNWIN Tnucx Filed Feb. 2o, 19:51

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.Inventowm Kenneth J. Unwin,

Attorney.

Patented Apr. 19, 1932 i UNITED STATES PATENT OFFICE.

KENNETH J'. UN WIIIN, 0F SCHENEGTADY, NEW YORK, ASSIGNOR TO GENERAL' ELEOTRIC COMPANY, .A CORPORATION OF NEW YORK i 1 TRUCK Application filed February 20, 1931. Serial No. 517,273.

This invention relates to an improved truck of the type wherein the platform is adapted to be adjusted vertically and also to be tilted angularly.

.e 1V hile the truck may be used to move various types of articles, it is particularly adapted for moving desks from one room into another. A steel oiice` desk l is very heavy, weighing about 400 pounds, and in moving leV these desks in or out of a room great difculty has been encountered in getting the desks through the doorways, due to the fact that the doorways frequently are too narrow to permit the passage of the desks edgewise. l It has hitherto been necessary for two or Vmore workmen to turn the desk on a side and moveit through the doorway and due to the weight of the desk if the men are not careful they bark either the desk or the door eo frame or both. By the use of my improved truck, the desk can be readily and quickly secured to the truck, turned on its side, and moved through the doorway, all of these operations requiringonly a single workman.

The object of the invention, accordingly, is to provide an improved form of truck.

For a consideration of what I believe to be novel and my invention,y attention isV directed to the following specification and the claims appended thereto.

VIn the drawings, F ig. 1 is an end view of the truck, a desk being shown in dotted o utline supported on the truck; Fig. 2 is a side view, in section, of the' truck, the platform bef ing shown in horizontal position, and F ig. 3

is a viewsimilar to Fig. 2 -showing theplatform tilted from the horizontal position of -Fi 2, to a vertical position.

eferring to the drawings, there is shown., m a basel which is provided with supporting Wheels or rollers 2 adapted to rest on the.

ground or floor and whichvperniit the truck 4to be rolled or moved about. These rollers are provided at each corner of the base and 43 are swivelly mounted in the base in any suitable manner, so that the rollers can be swung to any angle relative to the base to enable x the truck to vbe moved in any desired direc tion.

A centrallydisposed vertical bracket 3 of 'jects through anopening 22 in the bracket 3 inverted `U shape is secured in any suitable manner, as by welding, to the upper side of the base. `.A shaft 4 has one end j ournalled in a bearing 5 carried by one arm of the bracket lwhile the other end of the shaft is` Journalled in a bearing 6 suitably supported in ablock 7 which is secured to a diagonally positioned side plate 8 forming part of the bracket 3. j 4The outer endof the shaft 4 projects beyond ,theI arm of ,the bracket and'is providedwitha crank handle 9 for manually rotating the shaft while the inner end of .the shaft has iXedly secured to ita bevel gear 10. i/rojecting vertically from'th'e base is a sleeve 11in which is journalled a threaded spindle 12. An end thrust bearing 13,is carried by the upper edge` of the sleeve 11 and acts as a supportfor an internally threaded nut 14, the threads of which engage the threads of the spindle. Concentric with thenut 14 and ixedly secured to itis a bevel gearl 15, the teeth of which mesh with the teethV of the f bevel gear 10. The upper end of the spindle is journalled in a bearing` 16 carried by the top of the bracket. v i

As shown in the drawings, the upper end of the spindle isreduced in cross-sectionfor aportion of its lengthfand on this reduced portion. there is suitably secured a block 17. Secured to one face ofthe block 17 is a substantially Z-shapedV bracket'lS, the lower A horizontal leg` of which is slotted as` shown vat 19 to form the forks V2O. A vertical guide bar 21, secured at one end'to the block y7 pro and is received between the forks 20in the bracket 18,` the bar` 21 thus acting to .guide the spindler12 in its vertical movement. -At

its upper end the bar 21 is `provided .with a transverse projecting pin 23 which s'adapted- 90 to be engaged by: theforks 2O of the bracket 18 toy limit the upward movement of the spindle 12, as shownV in Fig. 3, .while the downward movement of the spindle is limited by the engagement of the forks 20 with the topV 95 ofthe bracket 3 as shown in Fig. 2.` y f A transverse shaft 24 is rigidly secured in a bore in the reduced end of the spindle 12, the shaft also passing through the block 17, and projecting beyond the sides ofthe block. 100

pivotal connection to the platform. Ynuts 34 are provided on the shaft and are*V One end of the shaft projects beyond the block for a considerably longer distance than the other end and this longer end is threaded for part of its length as shown at 25. A. horizontal platform 26 is provided on its underside with substantially centrally disposed, spaced, depending arms 27. These arms have aligned hubs 28 formed on their free ends,

Which are journalled on the projecting ends of the shaft 24 with the block 1,7V positioned between the hubs 28 as shown'in Fig. 1. A nut 29 is provided onthe threaded end of the shaft 24 and is adapted when moved 1n one direction along the shaft to clamp one of the j f nut 33 which when moved along the shaft 24 toward the pivoted side 32 is adapted to abut this sideV and 'move it outwardly about its Lock adapted to hold the nut 33 in its adjusted yposition on the shaft. Y

As shown in the drawings a plate 35 is provided which bridges the space between Vthe arms 27, and which'is adapted, when the platform is rotated in one direction on the shaft 24, to abut a padded stop 36 on the bracket 18 to prevent the rotation of the platform in-this direction pasta horizontal position. Similarly, an angle bar 38 carriedV by an edge of the platform'is--adapted when the platform is rotated in the oppositedirection to engage a padded stop 39 carried yby an arm of the bracket 3 to prevent the rotation of the'platform in the opposite di- I rection past a vertical position. Pads 40 are provided on the outer faces of the depending sides 30 land 32 which grip the sides'of the desk as shown in Fig. 1 when the pivoted side 32 of the platform is moved outwardly. ySimilar pads 41 are'providedon the top of the platform as yshown in Fig. 2 on which the top of the desk rests, and the pads 41 along one edge ofthe platform are provided with upstanding edges 42 against which ank edge of the top of the desk abuts.

In use the platform is lowered to the position shown in Fig. 2 and the truck is moved underv the desk as shown in Fig. 1. The spindle 12 is then rotated until the platform raises the desk off the floor,and the desk is wholly supported on the truck. f The nut 33 is then rotated to move the

sides

30 and 32 into clamping engagement with the sides of' the desk. The .desk is thus supported on they truck'and is prevented from :slipping .on the platform by the clamping action of the

sides

30 and 32 and the upstanding projections 42. The nut 29 is then loosened and the platform is rotated on the 'shaft 24 until the platform position with the desk on its side. The truck can then be readily movedl about "as desired and the desk can'be easily and readily moved through a doorway, all of this work requiring the services of only one workman.

In accordance with the provisions of the patent statutes, vIhave described what I now consider to represent the best embodiment of my invention, but it is to be understood that the invention is not limited to the exact vdetails of the construction shown, since various changes or modifications, such as for example making both depending

sides

30 and 32 yad j ustable relativeto the platform, may be made without departing from the spirit of the invention.

What I claim as vnew and desire to secure by LettersPatent of the United States, is,-

1. A truck for moving articles havinga top and spaced sides depending therefrom, comprising a base, supporting rollers carried by said base, a horizontal platform supported on saidbase and vertically adjustable relative thereto, depending sides onv-saidrpllatform, said platform being adapted tol be' positioned in the space between the depending sides of the article to be moved with the sides of the platform substantially parallel to the sides of the article, means for clamping thesides of the platform against the sides of the article to be moved, and meansfor raising and lowering the platform.

l 2. A truck for moving articles having a top and spaced sid-es depending therefrom, comprising a base, supporting rollers carried by said base, a horizontal platform supported on said base and vertically' adjustable relative thereto, depending sides on said platform,one

of said sides being'adjustable'toward and away from said platform, saidA platform being Aadapted to be positioned vin the yspace between the depending sides ofthe article to be moved, with the: sides of the platform substantially parallel to the sides of the article, means for moving the sides of the platform into clamp-V ing engagement with the sides of thefarticle to be moved, andfmeans for raising and lowering the platform. v

3. A truck for moving articles-having'a top and spaced sides depending therefrom, comprising a base, vsupporting rollers .carried by said base, a horizontal platform supported m on said base and'vertically adjustable relative thereto, depending sides on said platform, one of said sides being pivotally connected to said platform, said platform being adapted to -be positioned in the space between the sides of the article to be moved, with the sides of the platform substantially parallel and adjacent to the sides of the article, means for moving said pivoted side of the platform against. the adjacent side of the article to clamp the sides of the platform against the sides of the article, and means for raising and lowering the platform.

4. A truck for moving articles having a top and spaced sides depending therefrom, comprising a base, supporting rollers carried by said base, a vertical spindle journalled in said base, a transverse shaft passing through the head of said spindle, the axis of the .shaft being perpendicular to the aXis of the spindle, a normally horizontal platform rotatably journalled on said shaft, said platform being adapted to be rotated from a horizontal to a vertical position, means for securing said platform in rotated position on said shaft, depending sides on said platform, said platform in its horizontal position being adapted to be positioned in the space between the depending sides of the article to be moved with the sides of the platform substantially parallel to the sides of the article, means for clampi ing the sides of the platform against the sides of the article, and means for raising and lowering the spindle to raise and lower the platform.

In witness whereof, I have hereunto set my hand.

KENNETH J. UNW IN.