|Publication number||US1340470 A|
|Publication date||May 18, 1920|
|Filing date||Mar 6, 1919|
|Priority date||Mar 6, 1919|
|Publication number||US 1340470 A, US 1340470A, US-A-1340470, US1340470 A, US1340470A|
|Inventors||Whitmore Fremont F|
|Original Assignee||Whitmore Fremont F|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (27), Classifications (13)|
|External Links: USPTO, USPTO Assignment, Espacenet|
F. F. WHITMORE.
BOLTING UP DEVICE.
APPLICATION FILED MAR. 6. 1919. RENEWED APR. 7,1920.
1,340,470. Pate ted May 18, 1920.
ummtoz Frame/riff h/fiifmare UNITED STATES PAZIENT orrrca.
mnmonr r. wnrrmoim, or smrrnn. WASHINGTON.
Specification of Letters l'atent.
Patented May 18, 1920.
Application filed March 6, 1919, Serial .No. 281,011. Renewed April 7, 1920. Serial No. 372,096.
T5 all whom it may concern:
Be it known that I, FREMONT F. WHIT- MORE, a citizen of the United States, and resident of the city of Seattle, county of King, and State of Washington, have invented certain new and useful Improvements in Bolting-Up Devices, of which the following is a specification.
My' invention relates to new and useful improvements in bolting-up devices and more particularly to that class of bolt up devices as employed by bolter-ups in the shipbuilding construction. The
present system of securing together ship plates, boiler plates and plates of like character, preliminary to riveting, entails gangs of two men each, a bolter-up and a helper, the helper is employed to insert the bolts through the holes in the plates and holds the head thereof between a wrench,- or
', other suitable tool, to preclude the rotation.
of the bolt when the bolter-up on the op-- posite side of the plate is applying the nut thereto.
The object of this invention is to provide a bolt of novel design that will eliminate the services of the helper to the bolter-up. A further object resides in the simplicity of construction of a bolt having a headless end that is adapted to be inserted through the holes of two or more superimposed plates and having means provided on its headless end that is adapted to be automatically projected laterally after the bolt has been inserted through the holes so as preclude its withdrawal.
Other objects will appear from a study of the following specification, illustrated in the accompanying drawings, and finally pointed out in the appended claims.
In the drawings,
Figure 1 is a view in "side elevation of a bolting-up device.
Fig. 2 is a plan view of the same, and,
Fig. 3 is a view inside elevation, show1 ing it applied to the plates preparatory to urging them together. v
Referring more particularly to the drawings, in which like reference numerals indicate like parts, the numeral 4 represents a bolt having a stem which is threaded 1n the usual manner. The outer end of this stem is preferably flattened, as at 5, on two sides, and can be provided with a hole 6, through the center, for the reception of a drift pin (not shown) or the flattened surface can be engaged by a wrench and the bolt held against rotation when the nut 15 1s applied thereto. The headless end of the bolt is preferably1 tapered so as to be more easily inserted t rough the holes 7 of the. plates 8. v
Upon opposite sides of the headless end of the bolt, in reversed relation, are provided shoulders 14 of the slot and the peripheralouter edge of the pins elongated ends, which serves to impart rigidity against displace ment when in this extended position.
The operation of this bolt tightening device is obvious. The headless end is first inserted through the holes in the superimposed plates 8 until the headless end is ex-- tended sufiiciently past the outer side thereof to give clearance for the elongated end of the pin to swing downward by gravit until it assumes the position as shown in Fig. 3, precluding the bolts withdrawal through the holes. The nut 15 can then be screwed up tightly and the respective plates 8 will be urged together.
In the event the bolt should turn freely when the nut is applied thereto, a drift pin held by one hand, can be inserted through the hole 6, or a wrench applied to the flattened part 5 thereof, and with the bolterups other hand free the nut 15 can be screwed down tightly, thus eliminating the services of the helper on the opposite side of the plate.-
While I have shown two pivotally 'attached members to the bolt, it is to be understood that one or more will sufiice.
Having thus described my invention, what I claim as new and desire protected by Letters Patent, is:
1. A bolting up device comprising a bolt having one end threaded to receive a nut, the other end of the bolt having recesses in its sides consisting of a transversely extending part and a part extending lengthwise of the bolt and having a side wall at one side, and bars pivoted in the transversely extending part of said grooves and each having an end ada ted ,to fit within the longitudinally exten ing part of one of the grooves, said bars having side surfaces adapted to enga e the side walls of the transversely exten ing part of the grooves when the bar is placed in a transverse direction.
2. A bolting-up device for tightening plates together comprising a member'threaded at one end thereof and adapted to be held against rotation on its threaded end, a nut carried by said threaded end, the unthreaded end of said member adapted to be inserted through the holes in? said plates, angularly shaped slots provided on opposite s des of said unthreaded end, pins pivotally disposed within said slots having shoulders adapted to abut against the shoulders of said slots when swung to a lateral position, whereupon said plates can be urged together when said nut is screwed down tightly.
Signed at Seattle, Washington, this 27th day of Februar 1919.
FRE ONT F. WHITMORE.
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|U.S. Classification||411/345, 29/238|
|International Classification||F16B35/04, F16B13/08, F16B39/04, F16B13/04, F16B39/00|
|Cooperative Classification||F16B39/04, F16B13/0808, F16B35/04|
|European Classification||F16B39/04, F16B35/04, F16B13/08B|