Belt Driven RSB Pillar Drill for Stationary Engine

Here is a video of another RSB Camelback of a different design but similar size.

I have tried contacting the guy via utube messaging.  Hopefully he will get back to me and can shed some light on the pulley sizes and if there is a mechanism missing from behind the handle.  Maybe he will know a little about the history of RSB

Riding the Camel

Started cleaning it up today.



I'm wondering if this is mean't to be a ball race for a bearing?? Also what are you supposed to use to tighten those collars? It looks like they have used a mallet & punch.




Not quite sure why this grub screw also has a nut.





Rear mount point for the pulleys to the base or motor mount.

Table.

Feed handle raises the quill and gravity feeds it, I think maybe a spring is missing from the top which would reverse this.





The pulley setup should look something like this one.




Some did have a main drive pulley which connected to a line drive, others had their own motor at the base and connected where the line drive would be. These must have been around over a crossover period. Which of these mine was originally is unknown. Although based on the history of the RSB lathe it suggests that this was an late 1800s drill.  In the advert above you can see both options belt and motor driven were available.

I estimate the large pulley should be about 4"x1⅜" and the speed of the driving pulley (aka motor speed?) 550 RPM based on various brochures.

Definitely think this was a thrust bearing but it has been castrated & lost its balls


Keyway has seen better days.





Really thinking there is something missing from in here, There is a pin on each half and those flats must have served some purpose? Maybe a return spring?????? Any ideas??




Rack & pinion show a little bit of wear.





This grub screw and nut hold the sleeve in place with that groove, do you think this is correct or modified??


The butchered grub screw here which has definitely been a hack job is filled on the end to work as a key. What should it have been?????
 









I have so many questions and the is so little info I can find. Some photos or adverts for "similar" drills, but they still don't show what is inside!


I'd love to know what mounted at the base? I can only assume it was a bracket for the stepped pulleys.

I deduce there was a two position arm with a locking screw at the elbow with guide pulleys. As the belt turns 90 deg over those guides I am thinking the tangent of the pulley would align with the centre of the drive pulley?? If I figure out the pulleys I can then work out the arc of the arm as it rotates between positions hopefully. Would the guide pulleys have bearings, or just greased up steel on steel? There isn't any bearings any where except for the one (thrust bearing) I believe should have been in the spindle.

How much crowning is required on the pulley and how much wider than the belt would they be?

What size would the second stepped pulley be if the larger was 4½" and how do I calculate the ratio of the pulley at the top to the pulley at the bottom and then to the drive pulley and to the rpm of the motor to get the correct drill speed. That is too much maths for me!

I also would like to know how the remove the chuck from the spindle. My guess is the spindle has a short taper which friction fits into the chuck?


This one might be easier to answer, drill chuck keys do they come in standard sizes?? It is missing on this drill and doesn't match the three keys I have. The chuck is un branded.



How hard would it be to set the table up perpendicular to the column and have the raised portion of the table redone on a surface grinder???


Ok I'll stop babbling on now…………..

The little Beastie - Camel Back Drill

I picked up this drill last weekend.  It is made by RSB..

The lower section of the pillar should be polished, it has currently been painted. It is a bearing surface for the table so slide on and rotate so I will strip it back again.

The same with the raised centre of the table, although I would like to have that ground, so it is true, flat and perpendicular to the column/drill bit.

 Was probably imported into Australia and retailed by Miller & Co (Machinery) Pty Ltd Machinery Specialists South Melbourne & Bendigo as per the brass plaque.
Looking for any info related to either of these companies which may help in identifying the drill with the intention of getting it back to original state.

Can't seem to find any info what so ever on her.
Nor can I find one of the same design. Most are an upside down L shape not F shape like this or they have the Y shape with the pulleys running horizontal across the top.
It is also an unusual size from the others I have seen are much smaller or huge at full size.

This lathe has the same Branding.

http://www.lathes.co.uk/rsb/

Any info that can be provided on this Drill or RSB please contact me.

Dawn 611 Post Drill Bearings

I was recently asked on a question on this thread post :

Resurrection. of a Dawn 611

Hi there. Nice article (and drill!) I not long ago purchased one my self, although it doesnt have the variations like yours does. I was wondering if you could provide me with some information regarding the thrust washer assembly, as mine is completely cactus. All I have left is a very worn disc that contacts the down feeder, the top washer for the thrust bearing, a very worn thrust bearing, a whole heap of chewed metal (presumably the lower washer for the thrust bearing) and the split washer that locates in the drill spindle. My question is whether I am missing anything else that needs replacing? Any info would be much appreciated. 
Ryan

HI Ryan thanks for visiting.

There were two variations. One has a fibre washer which basically acted as a clutch plate.
The second variation the two steel plates had a very slight groove and a bunch of small ball bearings in some thick grease.

Basically two matching discs (Top & Bottom), Either a fibre dis or bunch of ball bearings. Then two half moon washers which hold the spindle inside the coupler.
These both can be replaced with a modern thrust bearing case. There is a replacement bearing available. Part no. 51102 from many suppliers around. I have replaced some of mine with these.

As I can't post images in my response I thought I'd add some images in a post.

New 51102 Thrust Bearing

Original showing fibre disc version

Hopefully Ryan will come back an get an update.