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Recent content by john.k
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J
OT: 500 megawatt compressed air power storage
Covid....whatever happened to that ?- john.k
- Post #13
- Forum: Manufacturing in America and Europe
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J
Buying manual mills and lathes for a VoTech shop
Theft from school machines is nothing new.....back in the 70s/80s Id buy Colchester Students and Bantams from govt schools with the tailstock quill missing,or even the whole tailstock..............ebay and facebook have made theft very easy and profitable ......put the pics online,if it doesnt... -
J
OT: 500 megawatt compressed air power storage
The greens aint stupid ..its a powerful fundamentalist religion that has carefully devised appeal for the young,with considerable funding from the axis of evil........ their activities go to weaken western economic potential ........like all religions they mix a grain of obvious truth into...- john.k
- Post #11
- Forum: Manufacturing in America and Europe
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J
Hiring a salesman
Got s better one than that ....young Dave is sitting in the tractor yard office when a young lady sales person comes in selling some kind of bulk detergent........young Dave orders 6x 50 gal drums,and disappears for several days....reputed down the Hi Way Motel with a young... -
J
any tips on boring a con rod on the mill table?
The factory always machined the rod held by the three centres .....one atop the small end,and two on either side of the bigend.....if your jig holds these three points rigid ,thats all you need ....check your South Bend lathe book for conrod bearing boring......Myford also supplied a similar... -
J
any tips on boring a con rod on the mill table?
There is a device that was called a "SeaLion" that goes with every old rod bearing boring setup.........the instructions that go with this device explain testing and correcting bend in conrods.......incidentally,prewar engine rods were made to be bent for correction........basically ,you hand... -
J
Ok, how is SIG making hybrid ammo?
people have been making rifle cases from drawn steel for over 80 years ......in fact much european military ammo is all ferrous ...no brass at all,not even primers...........so how does this process have any cost advantage over steel cases?- john.k
- Post #14
- Forum: Gunsmithing
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J
Automotive machining question…
Funny story about a fuel line .......was doing some work .chassis extension, on a big gasoline powered ex military truck.........anyhoo ,cut a steel fuel line with the oxy....there was a whistling sound ,got louder and louder for around 10 seconds or more ,then "boom" the fuel tank... -
J
Ok, how is SIG making hybrid ammo?
Funny,but amateur collectors and shooters have been using exactly the same method of joining brass tube to steel bases to make obsolete cases since I was a child.........The system was invnted and patented by Col. Edward M Boxer RE in 1864,in relation to the conversion of muzzle loading rifles...- john.k
- Post #12
- Forum: Gunsmithing
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J
OT: 500 megawatt compressed air power storage
These systems have failed at various times from the 1880s onwards ,due to the very poor energy recovery efficiency from compressed air........around 10% at best.- john.k
- Post #2
- Forum: Manufacturing in America and Europe
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J
Hiring a salesman
if you own a shop ,sales have to tread a fine line between comission and bribery.......for instance you always get a certain job at way over the going rate ,and it comes via a "salesman" ,who says that competing interests are going to need some cash (folding kind) straight up for the contract to... -
J
Small shop startup. / FIRST TIME POSTING :)
I started with one off maintenance type work.......every factory has a maintenance mechanic ...this is the person to see .......no use appointments with purchasing officers ......look for the maintenance guy with his own order book.- john.k
- Post #10
- Forum: Shop Management and Owner Issues
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J
Thoughts on reproducing a pre-1900 spindle
I pull the swarf off my Swift with a garden rake .....if it gets too thick ,it may wind up around the work ,throwing swarf all over the shop .........one time the bundles of swarf on the floor wound up and pulled an electric cord into the rotating mess .- john.k
- Post #48
- Forum: Antique Machinery and History
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J
any tips on boring a con rod on the mill table?
Conrods that had white metal bearings always have two centre drill cuts ,just outside the rod bolt bores either side ...........these two cuts are held by two centres on the boring machine ,as is the small end held by a couple of opposed cones.............up to the 1950s,every small lathe had a... -
J
1 Ton Long Wheelbase Dually Flatbed Pickup vs Machine Height/Size/Weight
When we were doing the bricks ,our trucks would go through the Govt weighbridge legal,and the lady from the office would be waiting down the road with extra pallets of bricks to load up......as we just been thru the weighbridge ,we were never stopped by the portable scales that used to stake...- john.k
- Post #39
- Forum: Material Handling and Rigging