Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
213 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main runningly a single wheel journaled upon said axle means for funningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist including upper and lower spaced apart jaw means defining an opening for receiving a planar flange portion of a joist, said upper and lower jaw means supportingly engaging the planar flange portion of the joist as the planes of said jaw means are tilted by manually urging said handle means downwardly.
Claim 2
Dependent Claim
213 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main runningly a single wheel journaled upon said axle means for funningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist including upper and lower spaced apart jaw means defining an opening for receiving a planar flange portion of a joist, said upper and lower jaw means supportingly engaging the planar flange portion of the joist as the planes of said jaw means are tilted by manually urging said handle means downwardly.
Claim 3
Dependent Claim
35 words
The dolly of claim 1 in which said main body includes a pair of vertically disposed parallel spaced apart side members, and transversely disposed top means rigidly joining said side members one to the other.
Claim 4
Dependent Claim
197 words
A leverage dolly for lifting one end of a long open web steel joist and then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, a single wheel journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly, said means for engaging and supporting the joist including upper and lower spaced apart jaw means defining an opening for receiving a planar flange portion of a joist, said upper and lower jaw means extending substantially equal distance along the length of one another.
Claim 5
Dependent Claim
197 words
A leverage dolly for lifting one end of a long open web steel joist and then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, a single wheel journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly, said means for engaging and supporting the joist including upper and lower spaced apart jaw means defining an opening for receiving a planar flange portion of a joist, said upper and lower jaw means extending substantially equal distance along the length of one another.
Claim 6
Dependent Claim
302 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said main body including a pair of vertically disposed parallel spaced apart side members, and transversely disposed top means rigidly joining said side members one to the other; said means for engaging and supporting the joist including a spacer member having a predetermined thickness thereto and being fixedly attached to said top means with the forward portion of said top means establishing lower jaw means and remaining unobstructed by said spacer member, and upper jaw means for cooperating with said spacer member and said lower jaw means to define an opening for freely receiving a planar flange portion of a joist when the planes of said upper and lower jaw means are aligned with the planar flange portion, said upper and lower jaw means supportingly engaging the planar flange portion of the joist as the planes of said jaw means are tilted by manually urging said handle means downwardly.
Claim 7
Dependent Claim
302 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said main body including a pair of vertically disposed parallel spaced apart side members, and transversely disposed top means rigidly joining said side members one to the other; said means for engaging and supporting the joist including a spacer member having a predetermined thickness thereto and being fixedly attached to said top means with the forward portion of said top means establishing lower jaw means and remaining unobstructed by said spacer member, and upper jaw means for cooperating with said spacer member and said lower jaw means to define an opening for freely receiving a planar flange portion of a joist when the planes of said upper and lower jaw means are aligned with the planar flange portion, said upper and lower jaw means supportingly engaging the planar flange portion of the joist as the planes of said jaw means are tilted by manually urging said handle means downwardly.
Claim 8
Dependent Claim
40 words
The dolly of claim 4 in which forward extending upwardly directed portions of said side members establish lower jaw means to reach under and engage the upper planar flange portion of the joist and to aid in supporting the joists.
Claim 9
Dependent Claim
14 words
The dolly of claim 5 in which said top means constitutes said spacer means.
Claim 10
Dependent Claim
19 words
The dolly of claim 4 in which the lower end of said handle means constitutes said upper jaw means.
Claim 11
Dependent Claim
263 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist includes hook means for reaching under an arcuate shaped upper flange portion of a joist, said hook means including a transversely disposed planar member fixedly attached to said main body and terminating forwardly thereof at an upward and forward reaching hook portion for reaching under the upper arcuate flange portion of the joist, and the forward ends of said main body terminating respectively along lines which substantially constitute continuations of said hook portion, said means for engaging and supporting the joist including bumper means for restingly engaging a lower flange portion of the joist as said handle means is manually urged downwardly.
Claim 12
Dependent Claim
263 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist includes hook means for reaching under an arcuate shaped upper flange portion of a joist, said hook means including a transversely disposed planar member fixedly attached to said main body and terminating forwardly thereof at an upward and forward reaching hook portion for reaching under the upper arcuate flange portion of the joist, and the forward ends of said main body terminating respectively along lines which substantially constitute continuations of said hook portion, said means for engaging and supporting the joist including bumper means for restingly engaging a lower flange portion of the joist as said handle means is manually urged downwardly.
Claim 13
Dependent Claim
266 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist includes hook means for reaching under an arcuate shaped upper flange portion of the joist; the forward terminal ends of said main body being angled in a forward and upward extending direction, and said hook means including a planar member fixedly attached to the angled terminal ends of said main body, said planar member extending forwardly and upwardly a predetermined distance beyond said main body for reaching under an upper arcuate web portion of the joists, and the lower portion of said planar member establishing bumper means for restingly engaging a lower flange portion of the joists as said handle means is manually urged downwardly.
Claim 14
Dependent Claim
266 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist includes hook means for reaching under an arcuate shaped upper flange portion of the joist; the forward terminal ends of said main body being angled in a forward and upward extending direction, and said hook means including a planar member fixedly attached to the angled terminal ends of said main body, said planar member extending forwardly and upwardly a predetermined distance beyond said main body for reaching under an upper arcuate web portion of the joists, and the lower portion of said planar member establishing bumper means for restingly engaging a lower flange portion of the joists as said handle means is manually urged downwardly.
Claim 15
Dependent Claim
184 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means disposed adjacent the forward end of said main body for engaging and supporting the joist includes hook means for reaching under an arcuate upper web portion of a joist.
Claim 16
Dependent Claim
184 words
A leverage dolly for lifting one end of a long open web steel joist and for then conveying the joist to and fro along a steel structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, wheel means journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means disposed adjacent the forward end of said main body for engaging and supporting the joist includes hook means for reaching under an arcuate upper web portion of a joist.
Claim 17
Dependent Claim
196 words
A leverage dolly for lifting one end of a joist and for then conveying the joist to and fro along a structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, a single wheel journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist including upper and lower spaced apart jaw means defining an opening for receiving a planar flange portion of a joist, said upper jaw means being spaced above said lower jaw means a substantially equal distance along the length thereof.
Claim 18
Dependent Claim
196 words
A leverage dolly for lifting one end of a joist and for then conveying the joist to and fro along a structural beam member having a horizontally disposed web which normally restingly supports the joist, said dolly comprising a main body, transverse axle means carried by said main body, a single wheel journaled upon said axle means for runningly and ridingly engaging the horizontal web of the structural beam member and for establishing fulcrum means to facilitate lifting one end of the joist, handle means fixedly attached to said main body to constitute a lever for cooperating with said fulcrum means to further facilitate lifting one end of the joist and having a portion thereof extending angularly upward and rearward from said main body, and means disposed adjacent the forward end of said main body for engaging and supporting the joist as said handle means is manually urged downwardly; said means for engaging and supporting the joist including upper and lower spaced apart jaw means defining an opening for receiving a planar flange portion of a joist, said upper jaw means being spaced above said lower jaw means a substantially equal distance along the length thereof.