Drawing. Wrapper from a packet addressed James Watt Esqre / Heathfield / Soho / Birmingham. On the other side, a light pencil sketch with annotations: “friction roller” – “ fast on the socket” – “friction roller” – “fast on the frame[?]” 9" x 7 ¼"laid paper, no watermark. Pencil sketch with annotations: “friction roller” – “ fast on the socket” – “friction roller” – “fast on the frame[?]” 1804-1812
Drawing. Press copy of drawings and instructions for the making of two drill spindles and collars (and drills?), similar designs but of different diameters, for the equal size sculpture copying machine present in Watt's workshop, by James Watt, 1810. Copy drawings and instructions for making two drill spindles and collars 1810
Drawing. Ink drawing with dimensions and annotations, dated Feby 16th 1810. 21 ¾" x 17 3/8", watermark J WHATMAN / 1805. Ink drawing with dimensions and annotations 1810
Drawing. Black ink with dimensions ands titles in red ink. “Eidograph Jany 18th 1809 / Scale half inch to the inch / views of paralel motion” £ views of the wooden frames, trussed with “steel”, fitted up. The upper frame hangs vertically, with “roof” truss to rear, and the lower is horizontal with the truss upward. The support for the drilling instrument is show as “Tube or round bar …”. 21 ¾" x 17 3/8", watermark J WHATMAN / 1805. Drawing, dimensions and titles in red ink. “Eidograph Jany 18th 1809 /.... 1809
Drawing. Views of “socket” to fit tubular arm, apparently for mounting drilling instruments &c., associated with James Watt's sculpture copying machines, 1806-12. Drawing, views of “socket” to fit tubular arm 1806-1812
Drawings of proportional sculpture copying machine by James Watt. Drawing, two views, proportional sculpture copying machine layout 1804-1812
Drawing. Sketches and instructions for mounting a diamond on the end of a wire. dated Heathfield Oct 30th. On reverse, 30 Oct 08 / JWatt[?] Senr[?] / Drawing of a Diamd for Nathan. 10" x 8" no watermark. Sketches and instructions for mounting a diamond on the end of a wire 1808
Drawing. Design for a drill frame, 5 views, and drawings of 5 different drills, annotated, in black ink, with some alterations and a sketch of a follower point (?) in pencil. 15 ¾" x 9 7/8", watermark I PARSONS / 1806. Drawing. Design for a drill frame, five views, and five different drills 1806-1812
Drawing. Black ink, parts for reducing sculpture copying machine bult by James Watt, 1806-1808. Drawing, parts for reducing sculpture copying machine 1806-1808
Drawing. 3 views of 'tablet' (saddle) and 'sliders' (fixed to saddle to register on bed) for ?reducing machine, black and red ink,16" x 9 ¾" flimsy paper, watermark. IPING/1802 Drawing, three views of 'tablet' and 'sliders' 1804-1812
Drawing. 2 views and cross-section of feed screw &c. of Eidograph. 22 ¾" x 15 1/8" no watermark., coarse laid paper. black ink, some pencil annotations. Also 2 views and a cross-section of a bar with palms at both ends and a lug in the middle. Drawing. Two views and cross-section of feed screw of Eidograph 1804-1812
Drawing. Parts of a “crane”: a triangular frame with apex downwards, one side an upright axis about 2’6” high and the horizontal arm at the top about 18 ½” long, ink drawing, dimensioned and annotated, some of the notes in pencil. 22 5/8" x 15 ¼" coarse laid paper, watermark, fleur-de-lys on escutcheon or tablet, crowned, with lettering below “ … LVG …”. Drawing. Parts of a “crane”: a triangular frame with apex downwards 1804-1812
Drawing. Rough pencil sketches (and 3 ink circles) for a drilling instrument. 10" x 8" no watermark Drawing, rough pencil sketches for a drilling instrument 1804-1812
Drawing. Black ink. Longitudinal section of feed screw of eidograph and cross-section of nut, Also 2 scrap views of the end of an arm with a bolt passing through and eye. All crossed out in pencil. 20 1/8" x 3 ¾ - 4 ¼" (tapering) watermark J WHATMAN Drawing. Longitudinal section, feed screw of eidograph and cross-section of nut 1804-1812
Drawing. Lathe bench in ink, 3 views “J.Watt Apl 9th 1810”. 12 7/8" x 9" coarse laid paper no watermark Drawing. Lathe bench in ink, three views 1810
Drawing. 3 views: “weight of three pound to fix on one of the arms of fluwheel [sic] to balance the crank, full size Feby 9th 1811, ink drawing, 8" x 6 ¼" (cut from a 10x8 sheet?) watermark I.PARSONS / 1807 Drawing. Three views: “weight of three pound to fix on one of the arms of fluwheel [sic] to balance the crank..... 1811
Drawing. 2 views but “Improved guide pullies Feby 26 [struck through] Mar 20th 1811” ink drawing with endorsements, 10" x 8" watermark. I.PARSONS / 1807. Drawing. Two views, but “Improved guide pullies Feby 26" struck through 1811
Drawing. Design in ink for a balancing arrangement based on compounded steelyards. Some details full size, other views half size. Alternative arrangements for bearings. Perhaps a personal weighing machine, with a folding balance arm (but the hinge-joint crossed out). 21 7/8" x 17 ¼" coarse laid paper, no watermark. Drawing, balancing arrangement based on compounded steelyards 1804-1812
Drawing. Wrapper from a packet addressed James Watt Esqr / Heathfield on the other side an ink drawing, a second view of the piece shown on sheet 20: “Spindle for diminishing machine Side view full size Jany 18th 1811 …” 10" x 8" watermark I.PARSONS / 1807 Drawing. “Spindle for diminishing machine, side view..... 1811
Drawing. Pencil sketch of ?wooden arms with metal end-fittings A centre-screw shown in two views. 24 ½" x 9 1/8" no watermark. Pencil sketch, wooden arms with metal end-fittings 1804-1812
Drawing. Part of a steelyard balance mechanism. Black ink, some alterations in red ink. 21" x 14" coarse laid paper, no watermark Drawing. Part of a steelyard balance mechanism. Black ink 1804-1812
Drawing. 2 views: “Guide pulley[s] for beam? of paralel lath Feby 12th 1811” pulleys on arm to be keyed to tube. ink drawing with endorsements. 10" x 8" no watermark. Drawing. Two views, guide pulleys, ostensibly for beam 1811
Drawing. Design for hinged boards with pulleys for a driving band, 2 views and section of “Pulley frame No 1” that is shown fixed to one of the boards. Also 2 views and section of “No 2” that appears to have been intended to be fixed elsewhere. Endorsed in ink: “J. Watt / Apl. 5th 1810, 22 ¾" x 15 ¼", Coarse laid paper, no watermark. Drawing. Design for hinged boards with pulleys for a driving band 1810
Drawing. Wrapper from a packet, postmarked NOV 28 1810 BIRMINGHAM, addressed Jas Watt Esqre / Heathfield On the other side an ink drawing: “Spindle for diminishing machine Jany 18th 1811… endorsed: “reduce thickness … if hammered instead of cast iron” a view of the gimbal joint for the tubular arm of the machine. 10" x 8" paper with a bluish tinge Drawing. “Spindle for diminishing machine Jany 18th 1811… 1811