Name/Title
DuPont Blasting MachineEntry/Object ID
2023.1.1Description
Dupont Blasting Machine No. 50, plunger style. The box is made of wood. The top and bottom pieces of wood are held on with dovetail joints, and a series of flathead screws across all the panels. The top has a leather strap handle that crosses the box. There are two connectors and a metal label on the top. The label reads:
Blasting Machine No. 50. Serial No. D143440. Maximum rating - 50 electric blasting caps with 30 foot copper wires connected in straight series as shown. To fire - Raise the handle until it stops then push down quickly with full force. E.I. Du Pont de Nemours & Co. Incorporated. Wilmington, Delaware.Inscription/Signature/Marks
Type
LabelLocation
SideTranscription
MAINTENANCE INSTRUCTIONS: Keep this machine in a dry place. Keep all connections tight and clean. Oil bearings occasionally. Use vaseline on rack bar and gears. Clean commutator and brushes with No. 00 sandpaper, and wipe clean. Brushes must be firmly set against commutator.Language
EnglishMaterial/Technique
LabelDimensions
Dimension Description
Height of box is below. Height with plunger up is 22.5"Height
13 inWidth
6-1/2 inLength
8 in