[TheForge] Fire place crane update

[Bob Ehrenberger]

I just uploaded the crane pics to the photoworks site. The first two are to 
old cranes circa 1840 the third in my crane.

Did Andy V. mention shooting himself in the foot on the list? I looked at 
those pics and they are quite disturbing.

Robert Ehrenberger
Shelbyville, Mo.
eforge at centurytel.net


----- Original Message ----- 
From: "Paul N" <crosspein at sbcglobal.net>
To: "Bob Ehrenberger" <eforge at centurytel.net>; "Blacksmithing List Sponsored 
by ABANA" <theforge at mailman.qth.net>
Sent: Sunday, December 05, 2010 8:26 AM
Subject: Re: [TheForge] Fire place crane update


Bob,
Thanks for posting this. I'll keep it for reference. The museum shop
where I volunteer has asked us to make a crane and this will come in
handy.  I have picked up an old used copy of "Iron and Brass Implements
of the English and American House" by J. Seymour Lindsay which has a lot
of sketches of cranes. Some are quite ornate, so a little decoration is
not really inaccurate for the period.

If you could post some pics, I'm sure we'd all appreciate it.

Thanks again,
**pn

On 12/4/10 2:24 PM, Bob Ehrenberger wrote:
> I just delivered the fireplace crane and the customer was delighted.
>
> For mounting hardware, I decided to go with the flat strap with the bend 
> on
> the back side to hook on the back side of the brick.  I used a piece of 
> 3/8"
> x 1 1/2". I tapered it down to about 1/8" thick where the hook was.
>
> Other information on the crane. For the top bar, I used 3/4" x 1 1/2" 
> which
> I drew to a long taper and ended up 1/2" x 3/8" at the very end where I 
> had
> a short section turned up. I made a 1/2" tennon on the end that attached 
> to
> the upright bar. The top bar started out 19" long and ended up 31" long
> after the taper.  I could have used lighter stock for this and had enough
> strength, but the other cranes in the village had very heavy top bars.
>
> The upright was made from 3/4" sq. with 1/2" tennons top and bottom. I 
> slit
> and drifted the hole where the top bar connected to it. The original 
> cranes
> used 1" rd for the uprights, but I figured that a round bar would make the
> connections more difficult and the only 1" rd that I have in stock is 
> sucker
> rod which would further complicate things..
>
> I had a diagonal brace made from 1/2" sq. which was riveted to the top bar
> and the upright. I did a reverse twist on this bar for a little 
> decoration.
> There was no decoration at all on the othere cranes, the customer had
> indicated that she wanted a little artistic touch. I figured that a simple
> twist would not be too fancy for the village.
>
> I also made a gauge bar out of 1/2" rd. to help the mason line up the 
> hinge
> bars (mounting hardware).  The gauge had tape marking the locations of the
> tennons on the upright, to make sure the hinge bars were the right 
> distance
> apart.
>
> All and all I am pretty happy with the way it came out, it looks a lot 
> like
> the old cranes in the other historic buildings.
>
> Robert Ehrenberger
> Shelbyville, Mo.
> eforge at centurytel.net
>
>
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