Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 15 of 23
Thread: Hercus, etc Model data
-
25th January 2010, 11:00 PM #1Senior Member
- Join Date
- Jul 2007
- Location
- Melbourne
- Posts
- 115
Hercus, etc Model data
For some time now, I have been thinking about the information regarding various model changes of the Hercus and similar clones like Sheraton. There seems to be a lot of incidental facts that are produced, but not in the one area or thread.
I will open a new thread asking for any information of interest so the data can accumulate in one reference thread.
I will start the ball rolling with a question: my early C model (No BS30) has a tailstock with a ring type spanner to lock. It has no serial number. When did they change to the cam model?
I have lots of other queries, and after rebuilding 4 various models, possibly a lot of info to share.
I think we could all learn something of interest.
Regards,
Peter
-
25th January 2010 11:00 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
26th January 2010, 09:46 AM #2Senior Member
- Join Date
- Apr 2008
- Location
- St Marys Tasmania
- Age
- 65
- Posts
- 339
Welcome to the club
Hi Peter, when I first started the Register it was to get as much information as possible on the Hercus Machines ,due to the fact that Hercus never kept any Historical records
I have been working out somewhere around 1950 onwards that Hercus changed to the camlock Tailstock as well as converting to v-belt
The v-belt as yet I have not found if they were a optional extra as in the South Bend or were just changed as a pure modification ,yet still no year
There is also the different ways to mount the motor or were the F & R Drum Switch was positioned
There is also the MODEL D ??? that Tony from UK talks about
The list is endless and I hope the owners of machines from 1950 onwards will help fill in the why's and when all these modifications were made even to the year the roller bearing headstock
all the best Derek
-
26th January 2010, 09:51 AM #3Member
- Join Date
- Jan 2009
- Location
- Victoria
- Posts
- 52
Hercus info
What a stirling idea Sir!
Perhaps the first step is to identify those areas that appeared to have changed that we may want to track and then each interested member can be invited to provide that info from their machine(s)
eg:
Model
S/N
Roller bearings,
Top slide retainer screws Near or Far
Imp / Metric
Etc
Wouldnt take to too long to pin down some major change dates and keep Bitza occupied referencing it to his knowledgebase for confirmation
Perhaps its also worth re-posting that "date / Serial" list and identify the major differences between models.
I know - I know its here on the forum somewhere.....
My Model B s/n BR9673 circa 1965 has the cam lock on the tailstock - perhaps all "B'''s did
Q. Should the headstock have a S/n and where is it located I fear mine may be painted over, several times, and it would be easier to know where to dig - if it exists.
Now back to converting perfectly good steel to chips and curls....
Ian
-
26th January 2010, 10:45 AM #4Senior Member
- Join Date
- Apr 2008
- Location
- St Marys Tasmania
- Age
- 65
- Posts
- 339
Model B
Hi Ian, the Model B only had the number stamped on the change gear chart the tailstock and the bed only the Model A had a number and that was on the gearbox plate
all the best Derek
-
26th January 2010, 01:42 PM #5GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
If all tail Stocks had Part No stamped on them and if they were Stamped in the same spot,the location for the Part No is on the Top section of the Tail Stock,Centre Rear above the alignment mark on the Rear Bottom section of the Tail Stock.
-
26th January 2010, 08:31 PM #6Member
- Join Date
- Jan 2009
- Location
- Victoria
- Posts
- 52
Hercus Serial Numbers
Thanks Pipeclay - I found that one OK - good info and thanks Derek I found the gear cover OK too.
I was just wondering if the actual head stock was also matched to the bed by serial numbers.The bed, tailstock and gear cover numbers match OK , but I was wondering if the Head stock was also stamped as matched.
A good point actually for this thread is to add this to the other info of S/N & year of Manufacture - How to ID your machine and where the numbers should be on the different models..
Cheers
Ian
-
26th January 2010, 08:39 PM #7Senior Member
- Join Date
- Jul 2007
- Location
- Melbourne
- Posts
- 115
Is a Sheraton headstock different?
From the outside, the plain bearing model headstock of the Hercus looks the same as the Sheraton. The bull gear, thrust bearing and pulley (but not belt size) are interchangeable.
However inside the casting, there is a difference. No felt, No springs, No oil wicks.
The photos show a series of spiral grooves that feed the oil supply around the spindle.
The solid shim has been included in the machining process.
The spindle bearings showed about 0.015mm (0.0006") wear variation across the surface.
A detail of a foreign particle that has a scored the surface is shown. This was small but enough to catch the spindle if put back into the housing. It was honed off with a diamond stone.
Considering the abuse the rest of the machine has endured, it was a pleasant surprise.
-
26th January 2010, 08:43 PM #8Senior Member
- Join Date
- Jul 2007
- Location
- Melbourne
- Posts
- 115
Ian,
Good idea.
I have a copy with the quantity made per year.
Anyone got a list of the Sheraton?
Peter
-
26th January 2010, 09:45 PM #9Novice
- Join Date
- Sep 2009
- Location
- Townsville
- Age
- 72
- Posts
- 21
Peter, what a terrific document. This is excellent for dating purposes.
A couple of units produced per day for every day of the year is pretty good manufacturing and organisation.
Thank you.
Frank
-
27th January 2010, 02:48 PM #10Senior Member
- Join Date
- Apr 2008
- Location
- St Marys Tasmania
- Age
- 65
- Posts
- 339
Hi Ian, as I have stripped Hercus Lathes from the 40's 50's, 60's 70's,and 80's in Acid I have only found 1 odd part which was a late roller bearing headstock lathe and the carraige was stamped with a C the others have nothing
From what I can see so far is all tailstocks that use a spanner are not stamped all Model A are stamped on the gearbox plate the lathe bed and if a late model on the Tailstock
The Model B & C are stamped on the gear change plate on the gear cover and on the lathe bed and if late model Tailstock
Unlike South Bend who stamped all the metal parts of their machine and also recorded all their data from the day it was built to the day it was sold to a customer
A pity Hercus never kept a filing system like that
all the best Derek
-
27th January 2010, 10:12 PM #11Senior Member
- Join Date
- Jul 2007
- Location
- Melbourne
- Posts
- 115
Hercus and Sheraton change gears
Nor quite obvious, but shown side by side is the different teeth angles
cut on the change gears.
The Hercus is 14.5, the Sheraton is 20.0 degrees.
Both are 18 DP.
They are interchangeable, (not a perfectly smooth mesh) but as the tooth loading is very low, acceptable.
Peter
-
27th January 2010, 10:15 PM #12New Member
- Join Date
- Nov 2009
- Location
- melbourne
- Posts
- 3
G'day guys
one of my lathe's, A 3953, has a spanner to lock the tail stock and features a serial number that matches both the bed and headstock number. It seems I'm in the minority with that.
Someting further for you to ponder Derek
-
28th January 2010, 07:58 PM #13Senior Member
- Join Date
- Jul 2007
- Location
- Melbourne
- Posts
- 115
Three different ways of slide handle fixing
Even though the range of Hercus models and similar Sheraton 9" lathes have similar leadscrews for the slides, same diameters, lengths etc. There is at least three different ways to key the handle to the shaft.
The 1939 "C" model Hercus uses a round key, it appears that the hole is drilled during assembly.
Later Hercus models use a woodruff key.
The Sheraton has a pin driven into the shaft. It is not required to be removed to extract the retaining bush.
They all work OK, but each has a reason related to production methods.
Peter
-
28th January 2010, 10:01 PM #14Mechanical Butcher
- Join Date
- Oct 2004
- Location
- Southern Highlands NSW
- Posts
- 920
-
28th January 2010, 10:32 PM #15GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
I would take a punt and say the Hercus Compound is the one on the right.
Similar Threads
-
Hercus Model 0
By SurfinNev in forum THE HERCUS AREAReplies: 92Last Post: 9th February 2011, 04:37 PM -
hercus model A
By welder in forum THE HERCUS AREAReplies: 10Last Post: 28th February 2010, 09:30 PM -
Hercus model A, I think not!
By neksmerj in forum THE HERCUS AREAReplies: 4Last Post: 24th September 2009, 05:11 PM