| Description | 3b. W. C. Stiff, Birmingham. Dec. 1878, Mar., Aug., Sep. 1879, Mar., Nov. 1880, Apr., Sep., Oct. 1882, Feb. 1883. 34 items.
Hydraulic bolt making machine, press, pumps, hoop mill, twisting machine etc.
Bolt Making Machine:
"W. C. Stiff's Hydraulic Bolt making Machine" - pencil plan and elevations, not dated.
Hydraulic pumps:
Set of numbered drawings (all partially coloured, not dated):
1 - plan; 2 - section; 3 - section (with tracing copy); 4 - side elevation and transverse section (with tracing copy); 5 - connecting rod (with tracing copy); 6 - front elevation; 7 - full size section and front elevation of part of the machinery.
Plan and elevations of set of 8 pumps, not dated.
Plan and elevations of a set of horizontal hydraulic pumps with 6 inch strokes - tracing and copy on blueprint paper marked "Drawing No. a/1291", Mar. 1879.
Also letter from Arthur Bayley to G. B. Martin dated 140 Aberdeen St., Winson Green, 6 Dec. 1878, with details of pumps; letter from Sir Joseph Whitworth & Co., Manchester, to W. C. Stiff, 3 Charlotte St., Birmingham, dated 13 Aug. 1879, with specification of hydraulic pumps (3 sheets); sheet of rough calculations for "hydraulic pumps for forging press".
Hydraulic Press:
"General Arrangement of Hydraulic Press, with Feeding Table" - pencil plans and sections marked "Drawing No. 43", Sep. 1879.
Hoop Mill:
Letter (press copy) from ? to Richard Halliday [?], Newton St. Works, Birmingham, dated 8 Mar. 1880, re quote for the 9 inch hoop mill; letter (press copy) from G. B. Martin to Richard Halliday [?], dated 8 Warstone Villas, Alfred Road, Handsworth, 11 Mar. 1880, re tenders for the 9 inch hoop mill; press copy page from a tender for the hoop mill; transcript of letter from Thomas Nash to W. C. Stiff dated Nether Edge, Sheffield, 3 Nov. 1880 with results of tests on steel bolts; press copy order note for extra set of "chilled shand rolls" for rolling hoops (not dated).
Hydraulic Pumps and Draw Bench:
Pencil specification by W. C. Stiff for 6 extra strong hydraulic pumps, 26 Apr. 1882; memoranda "Particulars relating to Hydraulic Draw Bench" for drawing one and two tubes, Sep. 1882; general arrangement of engines and draw bench foundations - copy on blueprint paper, Feb. 1883 [the letter code has been cut away]; memorandum by G. B. Martin "Particulars of Pumps required to work a ram 7 inches diameter at a speed of 16 feet per minute, allowing 15% loss from pumps"; small sheet of notes on 7 inch ram for drawing 20 foot of tube.
Twisting Machine:
Girders and plate etc., shaft and guide rods, girder and block, alteration to engine crank shaft - copies on blueprint paper, Sep. and Oct. 1882. All the drawings bear letter codes.
Tracing of balance weight etc. marked "Alterations required shown in red", not dated.
For W. C. Stiff. Gun barrel manufacturer, Ledsam St., Birmingham.
See also: Portfolio 6/6 (base plate for circular saw, base frame for 8 inch vertical engine). |