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Re: MYSTERY OBJECTS
Posted: 06 Apr 2015, 07:49
by Stanley
No Gloria, they are the ones with the very broad blade used for cutting bricks. But you are in the right area, very closely related.....
Re: MYSTERY OBJECTS
Posted: 06 Apr 2015, 17:22
by Gloria
A de-pointing chisel?
Re: MYSTERY OBJECTS
Posted: 07 Apr 2015, 03:10
by Stanley
That's exactly right, it only has one use, cutting perished mortar out before re-pointing.
Try this one, the next in my chisel series....
Re: MYSTERY OBJECTS
Posted: 07 Apr 2015, 07:51
by Gloria
I think I know but will let someone else have a go.
Re: MYSTERY OBJECTS
Posted: 07 Apr 2015, 11:33
by Stanley
Go on Gloria.... I've got plenty of objects lined up because during a search through the treasure chests for something else I found some interesting stuff! I did the pics this morning before I started in the shed....
Re: MYSTERY OBJECTS
Posted: 07 Apr 2015, 11:43
by Gloria
Caulking chisel????
Re: MYSTERY OBJECTS
Posted: 08 Apr 2015, 03:51
by Stanley
Sorry, no Gloria. They usually have a flat end. The diamond point is the key, when would you need that?
Re: MYSTERY OBJECTS
Posted: 09 Apr 2015, 06:08
by Stanley
You've all gone quiet..... It's a diamond point chisel and had two uses. Occasionally you needed to cut oil grooves inside the bearing shells of an engine and this was just the thing. However, it's main use was cleaning the corners out of key-ways that had been chipped out in the ends of big shafts. We tend to forget now that chipping and filing was the recognised way of creating plane surfaces and later key-ways in both cast iron and steel. It is a lost art. Newton was once consulted about renewing a key-way on a large crusher at Threshfield Limestone Quarry. His quote was only a fraction of the others they had because his method was to chip the key-way in situ, all the other quotations involved taking the shaft out and doing it by machine in a large shop, a massive job and time consuming. B&P got the job and cut the key-way in one day. A satisfied customer!
Try this one.... (Clue, strictly speaking it isn't a chisel)

Re: MYSTERY OBJECTS
Posted: 10 Apr 2015, 02:41
by Marilyn
Log splitter?
(I am so rubbish at this topic!)
Re: MYSTERY OBJECTS
Posted: 10 Apr 2015, 03:11
by Stanley
No Maz but oh so close!
Re: MYSTERY OBJECTS
Posted: 10 Apr 2015, 07:25
by LizG
For breaking / cutting tiles? bricks?
Re: MYSTERY OBJECTS
Posted: 11 Apr 2015, 03:39
by Stanley
Maz was so close and as I have plenty to go at I'll give the answer. It was not meant for cutting anything, it's pot hard and would shatter. It's a wedge for splitting large flanged joints on pipe work. A handy tool.
Try this one........
It's a good length, about 18" and very sharp.
Re: MYSTERY OBJECTS
Posted: 12 Apr 2015, 04:45
by Stanley
That went down like a lead balloon! We aren't hanging round, this a large true chisel forged by the smith to give the necessary angle for chipping out a large keyway in situ like the one I described on the Rock Crusher at Threshfield. The fitter would have two or three like this freshly sharpened in the fire and re-tempered, grinding was no good. If the material was different than was expected they were taken back to the smith and he was skilled enough to alter the temper of the edge to suit the material. Chisels were more complicated thatn most people think.
Try these two. Not chisels, very specialised and totally redundant today.
Re: MYSTERY OBJECTS
Posted: 13 Apr 2015, 04:15
by Stanley
Come on you lot! Click to enlarge and note that there are no sharp edges on the business end. The shape is important as well.....
Re: MYSTERY OBJECTS
Posted: 13 Apr 2015, 08:06
by plaques
They remind me of the instruments the dentists used to get the tartar off my teeth. So I'll go for packing seals into steam engine piston rods or as a long shot knocking flanges off driving shafts .
Re: MYSTERY OBJECTS
Posted: 13 Apr 2015, 08:09
by LizG
Mini crowbars?
Re: MYSTERY OBJECTS
Posted: 13 Apr 2015, 13:33
by Pluggy
Tyre Irons.
Re: MYSTERY OBJECTS
Posted: 14 Apr 2015, 03:41
by Stanley
P is close enough. It was quite common as recently as 50 years ago to use spigoted joints on cast iron water pipes and these were 'caulked' by driving lead wool into the joints using caulking irons like this. On very old steam plant the same technique was used for almost all joints on cast iron pipes. A variation on this was the 'rust setting joint' which was made by making the initial seal with lead wool and then packing the remainder with sal ammoniac and fine cast iron borings mixed. This compound corroded and swelled as it did so making a very tight joint which was virtually impossible to release. On the Whitelees engine one such joint had swelled so much that it cracked the female part of the joint. I left it alone! It is still like that. So, they are specialised caulking irons.
Try this one....
Re: MYSTERY OBJECTS
Posted: 14 Apr 2015, 07:30
by plaques
Stanley, your eye ball appointment must be taking over your brain activity. You showed us this one on 4 April. All is forgiven, how you dig up such a range of bits and bobs amazes me.
Re: MYSTERY OBJECTS
Posted: 15 Apr 2015, 04:53
by Stanley
You're quite right P. Try this one..... (without cheating on Google!)

Re: MYSTERY OBJECTS
Posted: 15 Apr 2015, 08:40
by chinatyke
Ha! My Dad worked for Mastabar in Accrington so I know!
Re: MYSTERY OBJECTS
Posted: 15 Apr 2015, 12:11
by Gloria
A guess..... For crimping belt ends together?
Re: MYSTERY OBJECTS
Posted: 16 Apr 2015, 04:28
by Stanley
Near enough Gloria (you are good at this!)
Here are the ready made 'alligator' grips you cut to length and then fastened to each end using the clamp above. Then you lined up the holes you had formed in the crimped alligator strips after interlocking them with each other and as you withdrew it slowly you followed up with a this rod made of rawhide which connected the two ends. This thin leather rod carried all the load on the drive. I haven't got any of them....
Try this one, something completely different! Nicely made out of high quality cast iron....

Re: MYSTERY OBJECTS
Posted: 16 Apr 2015, 08:55
by plaques
Always wondered where the door knob to the servants entrance had got to. I suspected the butler, in 90% of the mystery murders the butler always did it, but now I know it was Stanley.
Re: MYSTERY OBJECTS
Posted: 16 Apr 2015, 08:58
by Gloria
Love it, want it, it's beautiful.
Is it the door handle off the treacle mine front door?