US2826461A

US2826461A - Device for raising blaster board-handy-man

Info

Publication number: US2826461A
Application number: US599634A
Authority: US
Inventors: Eliason Ray Marvin; Eliason Edwin Bernhart
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-07-23
Filing date: 1956-07-23
Publication date: 1958-03-11
Anticipated expiration: 1975-03-11

Description

R. M. ELIASON ET AL 2,826,461

DEVICE FOR RAISING PLASTER BOARD-HANDY-MAN March 11-, 1958 2 Sheets-Sheet '1 INVEXITORS. RAY E1. [Asa/v y Filed July 23 1956 March 1953 R. M. ELIASON ET AL 2,8 6,46

-HANDY-MAN DEVICE FOR RAISING PLASTER BOARD .3 a a 2 WW QM. & N M t m w s m M m S V .N L E 9 mm Y m 2 DEW Q .o m m w H w d w. M

2,826,461 Patented Mar; 11, 1 958 DEVICE FOR RAISING BLASUER BOARD=HAND1Y-MAN1 Ray Marvin Eliason and Edwin Bernhart Eiiason, hsmnian ich-;

Application..J ll.23,.1956, .Serial. '1- No. 599,634

2 Claims. (Cl.- 304-29) This. invention relates to devicesfor; raising plaster board. l l i l l It is an object of the present invention to provide a device for raising plaster board wherein the plaster board may be raised to any convenient height and which will permit one man to do the work of three.

It is another object of the present invention to provide a device for raising plaster board of the above type which may be used for lifting plaster board of any length and which is easily and readily mobile.

It is still another object of the present invention to provide a device for raising plaster board of the above type which may be also used for raising a stage to permit the user to stand on when plastering, painting, washing or the like.

Other objects of the present invention are to provide a device for raising plaster board bearing the above objects in mind which is of simple construction, has a minimum number of parts, is inexpensive to manufacture and efiicient in use.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which:

Figure 1 is a side elevational view of a preferred embodiment of the present invention shown in operative use and illustrating in phantom the raised position of the plaster board;

Fig. 2 is a top plan view thereof shown partly broken away;

Fig. 3 is a fragmentary end elevational view looking along the line 33 of Fig. 1;

Fig. 4 is a transverse sectional view taken along the line 44 of Fig. 1;

Fig. 5 is a fragmentary vertical sectional view taken along the line 5 5 of Fig. l; and

Fig. 6 is a perspective view illustrating an alternate use of the invention.

Referring now more in detail to the drawing, 10 and 11 represent a pair of elongated angle bars or angle irons having their vertical faces pivotally connected together by means of the pin 12 and the ball bearing assembly indicated generally at 13 (Fig. 5).

It will be noted that a ball bearing assembly 13 is provided on each side of the vertical portions of the angle irons 10 and 11 and that a nut 14 is screw threaded onto one end of the pin with a washer 15 being provided intermediate the nut and the adjacent ball bearing assembly. The other end of the pin 12 extends outwardly beyond the iron 14) and rotatably mounts thereon a drum 16, a washer being provided on the pin intermediate the drum 16 and the other ball bearing assembly 13. The inner end of the drum 16 is integrally formed with the ratchet teeth 17 for a purpose which will hereinafter become clear while the outer end of the drum fixedly carries the block 18 having an angular opening 19. A removable crank is provided for the drum and includes the arm 20 of U-shaped cross section adapted to fit with- 2 in the angular bore 19 to the outer end of which-- is pivotally connected the-arm 21 by'means of the pin 22; the free end: of the arm 21' rotatably mounting the handle 22'.

The lower ends of-the angle irons 10 and 11 are'bevelled off and fixedly mount the transverse supporting plates- 23, on the undersurface of which at opposite ends are provided the casters '24 (Fig. 3): Theangle irons 10 and, 11 are-welded tome-transverse supporting-plates 23.

The upper ends of thea-ngle irons-10-and- 11 are similarly bevelled ofiand fixedly' mount the-supporting plates 25 (Fig. 4), eachof whichzfi'xedly mountsr thelaterally spaced mounting brackets 26:which.serve-to mount=the laterally extending: supporting shafts. 27. The supporting shafts 2 7 extenddaterallybeyondxthe: brackets. 26.. and.

each rotatably mount a pair of rollers 28 by means of the ball bearing assemblies 29. The ends of the shafts 27 are externally threaded and receive thereon the nuts 30, washers 31 being provided between each of the nuts 30 and the outermost ball bearing assemblies 29.

Pulleys

32 and 33 are rotatably mounted on the angle irons 11 and 10 respectively above and equally spaced from the drum and receive thereon the cable 34, both ends of which are fixedly connected to the drum 16 whereby upon rotation of the drum in a counterclockwise direction the pulleys will be drawn together and as shown in Fig. l in phantom. The pulleys are retained in the adjusted position by means of the pawl 35 pivotally connected to the angle iron 11 by means of the pin 36 and which engages the ratchet teeth 17 under the action of the spring 37, whereby to retain the device in the successively raised positions.

A pair of elongated strips 38 are placed in laterally spaced, parallel relationship on the rollers 28 and support thereon the plaster board 39. The strips or rails 38 are approximately twelve feet long and are formed of steel, supporting plaster board of any length without bending. The swivel connection 22 between the arms 20 and 21 of the crank permit the cranking from an angle. The top rollers can be made of wood or steel, and the casters 24 will rotate in all directions, depending upon the direction in which the device is pushed. It will be noted that the ball bearing assemblies 29 are countersunk in the opposite ends of the rollers. The rollers at the ends may be provided with flanges to prevent the rails 38 from sliding 01f.

As shown in Fig. 6, a stage may be alternately mounted on the rollers 28 to permit standing when plastering, painting or washing, the stage including the lower rails 40 connected by the transverse strips 41 by bolt means, the bolt means also mounting the vertical portions 42 which similarly support at the upper ends the top rails 43.

While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claims.

What we claim as new and desire to protect by Letters Patent of the United States is:

1. A device of the class described comprising, in combination, a pair of elongated supports, means pivotally connecting said supports together at their centers, transverse support means at the lower ends of said elongated supports, roller means carried by said transverse supports at the opposite ends thereof to permit their movement to cross the supporting surface, second roller means at the upper ends of said supports extending transversely thereof and adapted to support thereon a pair of laterally spaced rails which in turn support the plaster board, means for drawing the upper ends of said elongated supports toward each other whereby to raise said second roller means comprising the drum rotatably mounted at the intersection of said elongated supports, a pulley rotatably mounted 3 on each of said elongated supports above and at equally spaced distances from said drum, a cable passing around said pulleys, the ends of said cable being connected to opposite sides of said drum whereby to draw said pulleys and second roller means together upon rotation of said drum, crank means for rotating said drum, and releasable means for retaining said second roller means in the raised position comprising a pawl pivotally connected to one of said elongated supports at one end and adapted to engage ratchet teeth provided at the inner end of said drum at the other end, and spring means connecting said pawl with said elongated support whereby to urge said pawl into engagement with said ratchet teeth and permit the release of said drum when urged away from said drum against the action of said spring means, each of said elongated supports comprising an angle iron having their vertical faces adjacent each other, said means rotatably connecting said elongated supports comprising a pin passing through the same, ball bearing assemblies on opposite sides of said pin rotatably connecting said angle irons thereto, said pins extending outwardly beyond said angle irons and rotatably mounting drum thereon.

2. A device according to claim 1, said crank means comprising a block secured to the outer end of said drum and having a central angular opening, a first arm of angular cross section adapted to fit within said angular bore, a second arm pivotally connected to the outer end of said first arm, and a crank handle rotatably mounted on the other end of said second arm whereby to crank said drum at any angle.

References Cited in the file of this patent UNITED STATES PATENTS 682,083 James Sept. 3, 1901 1,817,418 Munns Aug. 4, 1931 2,468,230 Pollard Apr. 26, 1949 2,779,951 Travis Feb. 5, 1957 2,781,236 Becker et al Feb. 12, 1957