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(2)feed (2)point protector (2)hard rubber pen holder (2)metallic nib (2)screw cap (2)ink feed mechanism (2)spring valve (2)ink flow control (2)air-vent plug (2)adjustable ink flow (2)nib feeder (2)hard rubber era pen (2)split nib (2)air valve (2)ink chamber (2)capillary reservoir (2)pen holder (2)nib attachment (2)atmospheric pressure feed (2)steel nib (2)detachable fountain (2)fountain attachment (2)water-activated ink (2)english patent (2)adjusting screw (2)cross pen (2)self-feeding pen (2)fountain pen mechanism (2)feeder mechanism (2)self-filling pen (2)waterman (2)adjustable feed (2)self-sealing nozzle (2)drawing pen (2)ink conduit (2)shading pen (2)sign-writing tool (2)gravity feed (2)feeder-bar (2)presser bar (2)ink sack (2)nib manufacture (1)elastic finger plate (1)compensating nib (1)channel feeder (1)stamped nib blank (1)joseph gillott (1)two-piece nib (1)pivot construction (1)set screw adjustment (1)covered holder (1)1840s pen patent (1)elastic spring nib (1)writing guide (1)ground glass (1)quill pen (1)teaching aid (1)hinged sheath (1)manifold pen (1)spiral wire point (1)check point mechanism (1)conical wire tip (1)ferrule construction (1)1844 patent (1)flexible nib point (1)early writing instrument (1)nib deflection (1)three-piece nib construction (1)oblique point (1)quill nib (1)india-rubber ink sac (1)metal-tipped nib (1)elastic ink chamber (1)1840s patent (1)ink pump (1)gold nib (1)diamond-pointed pen (1)oblique pen (1)philadelphia pen maker (1)eccentric conical valve (1)self-clearing nib (1)1849 patent (1)screw-cap sealing mechanism (1)self-regulating pen (1)tracing pen (1)hair-pencil reservoir (1)valve pen (1)self-supplying pen (1)slide-actuated valve (1)eyedropper-style fountain (1)vermont patent (1)ribbed back (1)flexible nib (1)hard steel pen (1)spring plate construction (1)spring pen (1)ink guard lips (1)kentucky patent (1)feeding-tube (1)elastic spring feed (1)conical seal (1)1850s patent pen (1)newell prince (1)sponge feed (1)mechanical 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(1)spelter metal fitting (1)mucilage holder (1)retractable brush (1)inverted bottle design (1)withdrawal rod (1)glue applicator (1)stopper brush (1)reservoir pen-holder (1)elastic ink tube (1)thumb-pressure feed (1)distributing tube (1)squeeze-filler (1)spring-valve (1)keokuk iowa patent (1)bristle feed (1)metallic sheath (1)cincinnati patent (1)ink channel design (1)double nib (1)fountain reservoir (1)perforated metal reservoir (1)hinged flap (1)glass cistern (1)transparent reservoir (1)thumb button (1)spoon reservoir (1)triple point nib (1)removable reservoir (1)pen-fountain (1)foraminous tongue (1)hard rubber pen parts (1)nib feed mechanism (1)ink-retaining spring (1)fountain spring (1)clinched fastening (1)nib spring guard (1)lever spring pen (1)san francisco patent (1)pen point protector (1)elastic rubber ring (1)capillary attraction (1)regulating valve (1)ink reservoir attachment (1)spring clip (1)sheet metal (1)pen holder accessory (1)detachable ink bowl (1)hinged ink flap (1)spring-loaded reservoir (1)pivoting flap mechanism (1)pen-holder (1)elastic cushion (1)ink-retainer (1)elastic valve (1)slide-operated ink flow (1)nib design (1)ink reservoir loop (1)flexibility slide (1)drawing pen substitute (1)elastic metallic pen (1)pneumatic filler (1)four-sided nib (1)piston pump (1)india rubber valve (1)multi-point nib (1)reversible point (1)double-sided nib (1)spring point (1)antique nib patent (1)valve-rod filler (1)camel's-hair brush feed (1)eyedropper era pen (1)glass ink fountain (1)adjustable feed cap (1)spring pen holder (1)writing-pen (1)dual-nib design (1)bevel edge (1)administratrix patent (1)washington d.c. inventor (1)ink flow improvement (1)nib holder (1)slotted tube (1)removable nib insert (1)slotted pen (1)cleveland ohio patent (1)solid ink cartridge (1)writing composition (1)valve-spindle (1)capillary chamber (1)flattened needle (1)elastic chamber (1)plunger filler (1)vent hole (1)eyedropper fountain pen (1)thumb feed mechanism (1)glass 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(1)multi-line pen (1)sheet metal nib (1)drafting pen (1)self-regulating ink flow (1)elastic feed tube (1)pressure-controlled feed (1)riga russia (1)twin-pointed pen (1)dip pen nib (1)v-shaped nib (1)cross-slit nib (1)sheet metal pen (1)capillary ink feed (1)reservoir attachment (1)sheet aluminum casing (1)ink capillary feed (1)clip-on fountain pen converter (1)plug-valve (1)nib retention (1)multi-color pen (1)nib blades (1)marking pen (1)spring-plate blade (1)steel pen point (1)tongue and slot feeder (1)pittsburgh patent (1)1890s writing instrument (1)1890s patent (1)script pen (1)variable line width (1)gravity-feed reservoir (1)spring-loaded valve block (1)19th century drafting instrument (1)hard rubber body (1)pen-point (1)nib modification (1)anti-staining pen (1)combined inkwell and penholder (1)rubber tube feed (1)19th century desk set (1)finger guide sleeve (1)air-bubble control (1)obstruction plug (1)capillary flow control (1)stamp moistener (1)mucilage applicator (1)hard rubber 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(1)split collar (1)