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22 Cards in this Set

  • Front
  • Back
*cut in a neck or to open the end of a bubble
*held above the glass
*spring or strap end of jacks is used to shape/cool glass
*used to pinch/pull small bits of glass
*add texture
*attach bits and handles
*shape details in the glass
Diamond Sheers
*have small round opening on tip-used to grasp the hot end of a pipe/punty
*diamond shaped blades below- pinch glass together to make small cut mark
Trimming Sheers
*come in various sizes
*used to cut hot glass, and trim lip of a vessel
*cut only very hot glass with sheers
*made from fruitwood, soaked in water
*shape fresh hot gather into a round even ball
*form a cool skin on the surface of the bubble that helps it blow out evenly
*always store under water, if they dry out, they will crack
Wet Newspaper or Wet Cork
*used like a soft block which you can shape/cool glass with
*have paper wet enough to prevent from burning, but not so wet it falls apart
*used to blow air into the open end of a bubble after it has been put on punty
*wooden(fruitwood)-used to flatten bottom of a vessel
*provide heat shield for the gaffer's arm, face, or body
*heat shielding = critical to safe and painless glassblowing
Blow Pipes
*hollow, stainless steel, come in various shaft and tip diameters
**use larger pipe to blow a larger piece
Punty Rods
*don't bend the pipes or puntys
*pontil (Latin)-hollow in shaft, solid at tip
*used to deliver hot bits and handles and to support piece when removed from pipe (to finish top half of piece)
*made from wood,plaster,graphite,sand,metal
*some are used in production to make each piece the same size and shape
*others are used to put stripes or texture in glass
*always shape glass as close to shape of mold as possible before you blow into it
*keep marvers covered when not in use
*stone/metal table used to shape /cool glass
*small marvers in shop are for picking up colored frits and powders
*big marvers should be clean/polished to prevent marks in surface of glass
*used at the bench to provide spot heat
*Using a gas torch near hot glass-advanced students only w/ instructors permission
Specialty Tools
*many custom made tools are used to make very specific objects
*footing tools to put on wine glasses, finishing tools to make a bottle that a cork will fit in
Hand Tools
*most burns are from touching hot steel
*all metal tools retain heat for 3 minutes after contact w/ hot glass
*serious burns=touching wrong end of metal tools
*put recently used pipes,puntys in proper blow off buckets(cool end up)
*keep bench neat (hot tools facing back of bench
*put handles on graphite paddles and rods
*never leave hot tools on floor/marver
*as metal cools, any glass stuck to-that metal will blow off
*keep level of glass in blow off buckets down to 1/4 full-so flying chips stay in bucket
*put used pipes and puntys in blow off buckets after you break piece off
Annealing Ovens
*ovens,lehrs-heated w/ high voltage electric coils
*primary dangers-electric shock, burns from hot bricks,metal frames,flying chips
*Get help from partner when putting pieces into lehr (use fire gloves to put pieces away
*If you put a blowpipe/punty in oven(don't touch heating coils-strong electric shock will result
*If you remove a hot piece from lehr, use gloves, put in blow off bucket
*if you remove hot bricks from lehr, use gloves,place on floor out of way.
*Draw circle around them w/ chalk, label Hot Bricks
*never put anything but glass/bricks into lehr w/o instructor permission
The Furnaces and Glory Holes
*never try to adjust/light furnaces/glory hole unless you have seen demonst. and understand each step
*always open air valve first(to blow out accumulated gas)before attempting to light furnace/gh
*always have lit flame(newspaper torch)under burner tip before opening gas valve
*always stand to side of the piece of equip. you are lighting
*if s/t makes furnace/gh keep going out, get help from instructor
*never leave door to furnace/gh open-causes blow out
*shut doors to furnaces/gh gently
Steam Burns
*water and hot glass make very hot steam!
*cut corners off wet newspaper, hold paper so steam will be directed away from your wrists
*when blowing in wet molds, make sure your partner is clear of steam-will be released from mold
*Blowing in wet mold makes Back pressure- cause piece and blowpipe to shoot out of mold
(can chip and even loose teeth if you aren't careful)
*Never put a hot blowpipe in water as steam will shoot up pipe and squirt UNLESS you cap end w/ thumb
*Use caution when scraping old glass into water. Too much hot glass- cause boiling water and steam to slop out of the bucket onto floor, feet-burning you
*wood blocks-cause steam burns, shake all water out of blocks before touching them to glass
Partner Awareness
*most dangerous part- can be blowing your partner
*always know where your partner is while working
*If you are moving thgh studio, assist partner, or any reason, make sure they see you
*If you walk behind blower at furnace/gh/marv shout Behind You
*Ask partner if they need help before you leave studio. Benching, glove piece into lehr, want a bit brought
*make a dry run thgh any move. Communicate before you act
*if you have a fight w/ partner-make up.
*No friends, strangers,former students in shop unless instructor is present
*be sure area is clear before you swing out a piece on blowpipe
Never swing out a piece on punty
Cullet and Batch Charging

(use stainless steel scoop only, to charge batch/cullet)
*primary danger- inhaling glass/batch dust, cutting your fingers, eye hazard from flying chips
*always wear respirator while sifting cullet/ charging batch
*use scoop to remove cullet from barrels, not your hands
*use caution and wear eye protection and gloves when scooping batch/cullet into furnace
Casting safety
(leather gloves are best for e/t except putting hot casting into lehr
*sand,mold casting require special safety measures. Don't attempt to cast glass w/o instructor approval
*always sift sand before use
*remove all hot sand from box asap after casting (save in wood/metal container)
*clear ladle in water bucket
*don't use metal oxides,lead,aluminum,toxic materials in casting
*always wear eye protection and gloves
Studio hazards
*most serious health hazards- lung hazards from glass dust, toxic smoke, eyehazards-heat,flying glass, uv and infer red light
*burns from hot glass, metal, cuts from sharp glass, fatigue from heat
*always wear respirator while sifting cullet, bagging/charging batch,sweeping studio, cleaning ovens, using glass powder
*always wear eye protection in shop
*always wear leather/fire proof gloves while handling glass,ladles,charging scoops,sharp glass
*never bring any heavy metals into studio w/o instruc. permission
*never bring anything made from asbestos in studio
*never put anything in contact w/ hot glass,in hot oven,except bricks/Kugler color, w/o instrc. permission
*never bring food/drink into blowing area of the studio
*wash hands when done
*Don't blow glass if you are having a bad day
*rest before each piece
*wear cotton clothing, hair back, no sandals