ver upon a bearing-bar by means of a spring.
The movement of the right-angle lever by this means operates the bar and throws pivoted hooks around the needles, holding them firmly in position for the operation of the thread-carrier.
A backward movement of the lever withdraws the hook from around the needles and the lifters from over the signatures, and permits the addition to the partly sewed book of another signature.
See also No. 151,507, Parkhurst and Thompson, June 2, 1874; No. 36,428, Tanner, September 9, 1862; No. 74,948, Smyth, February 25, 1868; No. 91,175, Smyth, June 8, 1869.
Adaptations to book-sewing of the ordinary Sewing-Machine. No. 124,694, Palmer, March 19, 1872, machine for sewing pamphlets.
No. 135,662, Palmer, February 11, 1873, booksewing-machine.
The signature, held between two slotted clamping-plates, is moved by them through shafts, connectinglevers, and the Geneva stop-motion intermittingly under the needle of an ordinary sewing-machine, the upper plate,
four inches square, with a round handle pro- jecting from the center.
One edge of the hammerhead is sawn down for the insertion of a piece of sheet iron or steel that projects about 1/4 of an inch, having a straight, round, smooth edge, and the opposite side of the head is rounded to prevent it from hurting the hand.
A saw-mill arranged for cutting veneers.
An implement for smoothing veneered and other surfaces.
Tanner's (Fig. 6844) consists of a sole-plate a, to which is attached a block b, having a handle at each end. The cutter-holder c is connected to the block by a screw at each end. A central thumbscrew d serves to adjust the angle of inclination of the cutter e. The shavings ascend through the throat f.
A machine for giving a fine bright surface to veneer or veneered work.
Spear's machine has th