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Post by oregon on Apr 8, 2020 16:54:29 GMT -5
Refurbing a highland park 10" gravity feed slab saw like this one
In the box was this piece below in green, it has the same golden paint color on it.... seems like I've seen this 'bearing on a roller' on some other little slab saw so the vise plate isn't dragging on the table? These HP saws have the brass rod in the picture. I don't see anywhere for it to go on the current culprit? Anyone recognize it? |
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AzRockGeek
has rocks in the head
Member since September 2016
Posts: 703
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Post by AzRockGeek on Apr 8, 2020 16:57:21 GMT -5
Looks like some type of homemade blade sharpener. Possibly clamp into vise and manually push bearing into blade. My guess.
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Post by rockpickerforever on Apr 8, 2020 18:57:17 GMT -5
Refurbing a highland park 10" gravity feed slab saw like this one
In the box was this piece below in green, it has the same golden paint color on it.... seems like I've seen this 'bearing on a roller' on some other little slab saw so the vise plate isn't dragging on the table? These HP saws have the brass rod in the picture. I don't see anywhere for it to go on the current culprit? Anyone recognize it? I have one of those saws, but I don't recognize that piece. It kinda looks like one of those hanger thingees that ladies can hang their purse on on the edge of their desk? Maybe the owner had some special usefor it? ETA - Didn't realize it was a bearing, maybe they used it as a guide for slabs? |
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EricD
Cave Dweller 
High in the Mountains
Member since November 2019
Posts: 1,142
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Post by EricD on Apr 8, 2020 20:31:43 GMT -5
Looks like some type of homemade blade sharpener. Possibly clamp into vise and manually push bearing into blade. My guess. This. It's a swage tool. |
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Post by oregon on Apr 8, 2020 21:33:50 GMT -5
I think that makes sense. It definitely has the same color paint as the table, factory bends, press fit, not homemade in my guess. I think this is one of the oldest versions of this saw, bolt down holes are cast Into the inside of the body, and it was well looked after (even the original Plastic hood is still in good shape) Just everything was coated in decades worth of hardened oil. I've always done the hammer swage / swedge method, but see there are a few mentions of feeding a bearing into the blade mentioned. I'll bet this was an extra 'Real HP' part back when ago, looks like it would clamp in the vise just fine. Cool, thanks.
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EricD
Cave Dweller
High in the Mountains
Member since November 2019
Posts: 1,142
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Post by EricD on Apr 9, 2020 6:55:59 GMT -5
I was almost going to try the bearing method last time but went with the hammer method. Maybe next time?
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Post by hummingbirdstones2 on Apr 9, 2020 8:26:50 GMT -5
I like the bearing idea. Had forgotten about that, and have been using a hammer. Would be good to not have to take the blade off.
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AzRockGeek
has rocks in the head
Member since September 2016
Posts: 703
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Post by AzRockGeek on Apr 9, 2020 8:50:11 GMT -5
So, how do you use the bearing approach in a large slab saw without draining the oil? Do you put it in the vise and let the autofeed drive it into the blade until your hear the binding? I always wondered.
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EricD
Cave Dweller
High in the Mountains
Member since November 2019
Posts: 1,142
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Post by EricD on Apr 9, 2020 9:08:29 GMT -5
So, how do you use the bearing approach in a large slab saw without draining the oil? Do you put it in the vise and let the autofeed drive it into the blade until your hear the binding? I always wondered. From what I've read it's a hand feed only type operation |
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Post by oregon on Apr 9, 2020 9:47:18 GMT -5
So, how do you use the bearing approach in a large slab saw without draining the oil? Do you put it in the vise and let the autofeed drive it into the blade until your hear the binding? I always wondered. I figure you just disconnect the autofeed motor/belt, turn it by hand... Let me know if it works for anyone.
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EricD
Cave Dweller
High in the Mountains
Member since November 2019
Posts: 1,142
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Post by EricD on Apr 9, 2020 11:59:37 GMT -5
So, how do you use the bearing approach in a large slab saw without draining the oil? Do you put it in the vise and let the autofeed drive it into the blade until your hear the binding? I always wondered. I figure you just disconnect the autofeed motor/belt, turn it by hand... Let me know if it works for anyone.
That would work! Next time I swage mine I'll grab an old bearing from somewhere my large pile of used bearings and try it |
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EricD
Cave Dweller
High in the Mountains
Member since November 2019
Posts: 1,142
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Post by EricD on Apr 9, 2020 13:38:21 GMT -5
The bearing rides on the under side of the table, the side with no bearing slides into a hole on the vise. I think it helps to prevent the rock from lifting up onto the blade while cutting with the weight feed. You're right!:  |
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AzRockGeek
has rocks in the head
Member since September 2016
Posts: 703
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Post by AzRockGeek on Apr 9, 2020 13:45:06 GMT -5
The bearing rides on the under side of the table, the side with no bearing slides into a hole on the vise. I think it helps to prevent the rock from lifting up onto the blade while cutting with the weight feed. You're right!: Wow!!!! I can't believe you found a pic with one attached. Mystery solved!! |
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Post by oregon on Apr 9, 2020 16:06:00 GMT -5
The bearing rides on the under side of the table, the side with no bearing slides into a hole on the vise. I think it helps to prevent the rock from lifting up onto the blade while cutting with the weight feed. saw that hole when I had the vise off, but forgot about it... Cool. I looked at heaps of pics and never saw that part on a single saw. These things were well built/designed. definitely locks the vise down.
 Bonus pic of a cool egg... blue/green highlights!
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Post by hummingbirdstones2 on Apr 9, 2020 21:39:28 GMT -5
Okay - now I'm gonna' have to make one of those!
Have never seen a photo of that part before, either. Thanks for posting it. I've just been adding weight to the top of the vise if needed.
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Post by Lapidaryrough / Jack Cole on Apr 9, 2020 21:57:41 GMT -5
checking my e-10 1955 highland park 8'' trim saw. No hole for that part.
And i see that your saw has cross feed adjustment / in 1955 they're dark green. gravity feed only.
Jack
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Post by oregon on Apr 10, 2020 12:05:46 GMT -5
checking my e-10 1955 highland park 8'' trim saw. No hole for that part. And i see that your saw has cross feed adjustment / in 1955 they're dark green. gravity feed only. Jack This is the 10" version, has E6 cast on the table, no model/serial on The hp label. The bolt downs are cast into the aluminum tank which is uniquely trapezoidal... (Contrast that to the picture I stole in the first post, square box with tabs. ) I imagine this was an earlier version? (at least I don't see those features as upgrade) No idea what year this was made, but wouldn't surprise me if it sat in the garage for unused for 40-50 years.   |
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Post by oregon on Apr 11, 2020 20:01:04 GMT -5
Hey oregon , how much weight are you using with the gravity feed? scientifically determined two hunks of steel that came with it! I just redid this saw, will put it up for sale soon, so don't have a lot of experience with it. Cut a couple slabs by hand today, then with the gravity feed. Weight probably depends on the saw, the drag on the main bar, and the brass guide, and how hard I jam the bearing attachment in (above) all contribute to the friction, so... I think there's probably 3-5 lbs on there? Personally I'd rather see things cut slowly with a nicer cut than fast with a rougher surface. Not sure if that helps you.
for reference, catalog shows coffee can with sand. Powerfeed option and canopy hood. Just have to figure out how my canopy can fit with the deflector on there.
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Post by beefjello on Apr 12, 2020 16:04:49 GMT -5
So glad to finally know what this thing is for!!  Thanks everyone in this thread  |
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lapitup
off to a rocking start
Member since May 2021
Posts: 10
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Post by lapitup on Sept 9, 2021 12:10:23 GMT -5
I just acquired this same saw..can't wait to clean it up and try it out
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