I claim, 1st, A shank, A, formed substantially as described in combination with the cutters, B, and nut or screw ring, O, the whole operating as set forth.

2d, In combination with the shank, A, cutters, B, and nut, C, the nut, e, bolt, g, and washer, g', formed as described and employed for the purposes specified.

71,944.--BOLT ATTACHMENT TO DOOR LOCK.--William H. Andrews [a.s.signor to Burton Mallory], New Haven, Conn.

I claim the bolt, E, constructed arranged within the lock case in combination with the follower, F, constructed with a cam, I, and spring, H, so as to hold the bolt securely in both its locked and unlocked position, substantially in the manner herein set forth.

71,945.--MECHANISM FOR PRESENTING PALM LEAF TO LOOMS.--Isaac Angell, Malden, Ma.s.s.

I claim for employment in connection with a loom for weaving with palm leaf or similar weft a mechanism substantially as set forth which automatically presents in succession the entering ends of single pieces of weft in such position with relation to the cross sectional form of each that each piece will be carried into the shed or web flatwise.

Also the mechanism for effecting the elevation and release of the weft, substantially as described.

Also the plate, d, with its rectangular perforations and the gate or slide for clamping a single piece of weft projecting through the plate, substantially as shown and described.

Also a mechanism substantially as set forth for "knocking off" the weft raising mechanism when a piece of weft is presented.

71,946.--BLACKBOARD FOR SCHOOLS.--William Arroquuier, Worcester, Ma.s.s.

I claim covering the plaster, B, with a coating, C, composed of the ingredients named and applied in the manner above described whereby the proper color and roughness are obtained as set forth.

71,947.--MODE OF OPERATING SWELL IN MELODEONS.--C.E. Bacon [a.s.signor to himself. George A Prince and Calvin F.S. Thomas], Buffalo, N.Y.

I claim the arrangement of the swell pedals side by side with the bellows pedals and contiguous to and parallel therewith, for the purpose and substantially as described.

71,948.--MATERIALS FOR TRANSMITTING HEAT.--William C. Baker, New York city.

I claim the employment of salted water, glycerin, or their equivalents, to prevent freezing in transmitting and diffusing heat through ordinary pipes, tubes or radiators for the purpose of warming and ventilating railroad cars, public vehicles and buildings, substantially as herein described.

71,949.--LAMP BURNER.--George E. Baldwin (a.s.signor to E. Miller & Co.), West Meriden, Conn.

I claim the arrangement of the auxiliary or ventilating tube, E, with the wick tube, B, combined with a solid part.i.tion, F, in the base of the burner so as to form a close chamber around the tubes and wick adjuster, substantially in the manner and for the purpose herein set forth.

71,950.--AUTOMATIC TOOTH PLUGGER.--Burr Bannister and George F. Green, Kalamazoo, Mich.

We claim, 1st, The combination of an engine operated by means of compressed air with a tooth plugger for the purpose set forth and described.

2d, The lock, F, in connection with spring, 1, operated by cross head of piston rod, in the manner and for the purpose specified.

71,951.--CAR COUPLING.--William F. Barlow (a.s.signor to himself, James Bower and W.A. Jackson), Monmouth, Ill.

I claim, 1st, The catch, C, slotted draw head, A, and weight, X, combined as described and for the purpose set forth.

2d, The rods, M N and H, and elbow, K, combined as described and operating in combination with the elements of the first claim arranged substantially as described and for the purpose set forth.

3d, The weight, X, arranged as described for the purpose set forth.

71,952.--HARVESTER RAKE.--John Barnes, Rockford, Ill.

I claim 1st, The inclined serrations, h h h, on the face of the rake head for the purpose of compacting the gavel.

2d, A compressor or supplementary rake pivoted to the rake handle and moving parallel to the rake head, substantially as described.

3d, The combination substantially as described of an automatic rake, a compresser and an interposed spring for the purpose set forth.

4th The combination substantially as described of a reel revolving continuously on a horizontal shaft a rake mounted on the same shaft [on trunnions arranged diagonally to the shaft], and a shipping device by which the rake may be thrown into gear between any two of the beaters of the reel and by which it may automatically be thrown out of gear at the end of its stroke.

5th, The combination substantially as described of the inclined rake handle with the trunnions or pivots revolving on the reel shaft, and arranged diagonally thereto.

6th, The combination substantially as described of the rake handle pivoted on trunnions diagonal to the reel shaft and the friction roller with a guide vertical below the axis of the rake and deflected both horizontally and laterally above that axis, as and for the purpose set forth.

7th, The combination substantially as described of the rake handle and shipping lever whereby the rake throws itself out of gear after discharging the gavel.

8th, The combination substantially as described of a rake mounted on trunnions revolving on a horizontal axis in a fixed relation to the guide which controls the movements of the rake with a revolving reel having an endwise movement on the same axis whereby the rake can be thrown out of gear by moving the reel endwise without stopping the reel.

71,953.--TRY SQUARE AND BEVEL.--Samuel N. Batchelder, Prairie du Chien, Wis.

I claim, 1st, The blade B, pivoted within the stock, A, and provided with a hooked projection, e, by means of which and the hook slide, D, the blade, B, may be set and held at any desired angle, substantially as described and for the purpose specified.

2d, The hook slide, D, with the thumb screw, E, arranged and operating substantially as shown and described for the purposes set forth.

3d, The spiral spring, F, in combination with a combined try square and bevel, substantially as described.

71,954.--PLATE LIFTER.--David B Beaty, Aurora, Ind., a.s.signor to himself and James Lamb.

I claim the curved wires, B B B, having hooks at their lower ends and connected to a handle, A, said handle being provided with a wire loop formed into a spring which connects to the wires, B, so that by pressing upon this spring, C, the wires, B, are caused to separate and release the plate, all constructed as specified.

71,955.--SUSPENSION BRIDGE.--Charles Bender, N.Y. city.

I claim, 1st, The construction and arrangement of one or more yielding joints connecting the beams or trusses of stiffened suspension bridges, substantially as herein described.

2d, The attachment of the ends of the cables or chains at or near the first or sh.o.r.e piers to the longitudinal beams or trusses of stiffened suspension bridges, substantially as set forth.

3d The means and method by which the ends of the beams or trusses of stiffened suspension bridges are secured to the sh.o.r.e piers by vertical anchorage and the arrangement of suitable joints, v, in said anchors, substantially for the purpose described.

4th, The means and method employed to reduce the side motion by attaching the longitudinal beams or trusses of stiffened suspension bridges to the central piers sidewise said attachment being on one pier perfectly immovable in any horizontal direction while at the other piers allowance is made for the variations of the length of the beams substantially as set forth and described.