US1091136A - Oscillating lever for operating pump-pistons, &c. - Google Patents

Oscillating lever for operating pump-pistons, &c. Download PDF

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Publication number
US1091136A
US1091136A US79413613A US1913794136A US1091136A US 1091136 A US1091136 A US 1091136A US 79413613 A US79413613 A US 79413613A US 1913794136 A US1913794136 A US 1913794136A US 1091136 A US1091136 A US 1091136A
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United States
Prior art keywords
lever
cheek
piece
pistons
oscillating lever
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Expired - Lifetime
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US79413613A
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Reuben Hilt
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2043—Screw mechanisms driving an oscillating lever, e.g. lever with perpendicular pivoting axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/1892—Lever and slide
    • Y10T74/18936—Slidable connections

Definitions

  • This invention relates to an oscillatory lever employed to impart rectilinear movement to a pump piston or other reciprocating device.
  • the specific embodiment of the invention shown in this application is a lever employed in a monot-ype machine for imparting motion to the piston of a pump employed for moving melted type metal, one arm of the lever being bifurcated and provided with cheek pieces which are movably engaged with the divisions of the bifurcated lever arm so that they may turn or rock on Said divisions, the cheek pieces being provided with bearing faces which engage shoulders on a piston rod or plunger, the construction and arrangement being such that when the lever is oscillated it imparts through the cheek pieces a rectilinear reciprocating movement to the plunger, the latter being in sliding engagement with the cheek pieces to compensate for the diii'erence in direction between the rectilinear path of the plunger and the curvilinear path of the cheek pieces.
  • the invention has for its object to provide an improved construction of the said cheek pieces for the purpose of connecting them durably with the lever in such manner as to prevent liability of loose wabbling mo-v tion of the cheek pieces, and to enable the cheek pieces so nearly to inclose the lever arms that they form boxes adapted to confine graphite or other refractory lubricant between the internal surfaces of the cheek pieces and the external surfaces of the lever with which they are in rubbing contact.
  • Vhen my invention is embodied in a lever for operating the type met-al pump plunger of a monotype machine, the cheek pieces and the portions of the lever on which they bear are maintained at such a high temperature that ordinary combustible lubricants cannot be employed.
  • the invention consists in the improve ments which I will now proceed to describe and claim.
  • ure 1 is a Side elevation of a pump lever embodying my invention
  • Fig. 2 is a plan thereof partly in section as on the line 2 2 of Fig. 1
  • Fig. 3 is a sectional detail as on the line 3 3 of Fig. 2
  • Figs. 4 and 5 are perspective views of the respective parts of one of the cheek pieces.
  • -6 designates a lever adapted to oscillate on a central fulcrum between its arms, the lever being oscillated by power applied in any suitable way to one of said arms.
  • the opposite arm which imparts motion from the lever to a plunger or piston rod 7 is bifurcated to form divisions 8, each having a segmental edge 9 and a circular socket or bearing 10 concentric with said edge.
  • a cheek piece which is adapted to rock on the segmental edge 9, the latter constituting a bearing for the cheek piece, and being provided with a trunnion which enters and is adapted to rock in the bearing 10.
  • Each cheek piece comprises a flat sided body portion 11 adapted to bear on the inner side of one of the lever divisions 8, a trunnion 12 projecting from one side of the body portion 11 and formed integrally therewith or attached rigidly thereto, the trunnion being fitted to turn in the socket l0, and a substantially U-shaped iange 13 having a segmental inner face 14, the greater portion of which is concentric with the trunnion 12.
  • the flange 13 has upper and lower flat faces 15 which abut against opposed shoulders 16 o-n the piston rod or plunger 7, said rod having a reduced squared portion 17 located between the two cheek pieces.
  • Each cheek piece also includes a cap piece 18 which is a iiat metal plate having the same marginal contour as the flange 13, and adapted, when placed upon the outer edge of said flange, to close the outer side of the space between the segmental inner wall 14 and trunnion 12.
  • the cap piece 18 is placed on the outer edge of the flange 13 after the latter has been applied to the lever.
  • the cap piece is then firmly attached to the flange, prefer ably by a welding operation, the welding being caused by the application of the iame of a welding torch to the joint between the flange and the cap plate.
  • the cap plate may be attached by electric welding or brazing.
  • the cap piece bears closely against the outer side oit the Alever division 8, and while permitting ⁇ the cheek piece to oscillate to the extent required, it prevents any loose lateral wabbling motion of the cheek piece, and at the same time, is adapted to confine graphite inserted between the contacting surfaces of Vthe cheek piece and lever.
  • the cheek piece and the cap piece united thereto as described constitute practically a single unitary part having no member or Vmembers liable to be loosened or disconnected, no screws, rivets or other separable fastening devices being employed in securing the two cheek pieces f to the lever.
  • I claim z- An oscillatory lever or arm having a transverse circular socket, a segmental bearing edge substantially concentric with the socket and a cheek piece formed to bear 0n one side of the lever and having a trunnion fitted to turn in said socket, a liange having a segmental i-nner face in sliding contact with ⁇ the segmental edge face of the lever and external -faces formed to engage shoulders on a movable rod, and a cap piece attached as described to the outer edge of said flange and forming, with the cheek piece and liange, a. box inclosing the portion of the lever having the segmental edge.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Description

. R. BILT.
OSGILLATING LEVER. POR OPERATING PUMP PISTONS, dao.
.APPLICATION FILED 00T.8, 1913.
REUBEN Humor WEST SoMEnvILLn, MASSACHUSETTS.
QSCILLATING LEVER FOR OPERATING' PUMP-PISTON S, &C.
Specification of Letters Patent.
Patented Mar. 24, 1914.
Appleation filed October 8, 1918. Serial No. 794,136.
To all whom t may concern Be it known that I, REUBEN'HILT, a citi- Zen of the United States, and resident of West Somerville, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Oscillating Levers for Operating Pump-` Pistons, &c., of which the following is a specification.
This invention relates to an oscillatory lever employed to impart rectilinear movement to a pump piston or other reciprocating device.
The specific embodiment of the invention shown in this application is a lever employed in a monot-ype machine for imparting motion to the piston of a pump employed for moving melted type metal, one arm of the lever being bifurcated and provided with cheek pieces which are movably engaged with the divisions of the bifurcated lever arm so that they may turn or rock on Said divisions, the cheek pieces being provided with bearing faces which engage shoulders on a piston rod or plunger, the construction and arrangement being such that when the lever is oscillated it imparts through the cheek pieces a rectilinear reciprocating movement to the plunger, the latter being in sliding engagement with the cheek pieces to compensate for the diii'erence in direction between the rectilinear path of the plunger and the curvilinear path of the cheek pieces.
The invention has for its object to provide an improved construction of the said cheek pieces for the purpose of connecting them durably with the lever in such manner as to prevent liability of loose wabbling mo-v tion of the cheek pieces, and to enable the cheek pieces so nearly to inclose the lever arms that they form boxes adapted to confine graphite or other refractory lubricant between the internal surfaces of the cheek pieces and the external surfaces of the lever with which they are in rubbing contact.
Vhen my invention is embodied in a lever for operating the type met-al pump plunger of a monotype machine, the cheek pieces and the portions of the lever on which they bear are maintained at such a high temperature that ordinary combustible lubricants cannot be employed.
My improvement hereinafter vdescribed enables the lubrication of the cheek pieces by graphite to be suitably maintained.
The invention consists in the improve ments which I will now proceed to describe and claim.
`Of the accompanying drawings which form a part of this speciiicatio-n,-Fig
ure 1 is a Side elevation of a pump lever embodying my invention; Fig. 2 is a plan thereof partly in section as on the line 2 2 of Fig. 1; Fig. 3 is a sectional detail as on the line 3 3 of Fig. 2; Figs. 4 and 5 are perspective views of the respective parts of one of the cheek pieces.
Similar reference characters indicate the same parts in all the figures.
In the drawings,-6 designates a lever adapted to oscillate on a central fulcrum between its arms, the lever being oscillated by power applied in any suitable way to one of said arms. The opposite arm which imparts motion from the lever to a plunger or piston rod 7 is bifurcated to form divisions 8, each having a segmental edge 9 and a circular socket or bearing 10 concentric with said edge.
To each division S is applied a cheek piece which is adapted to rock on the segmental edge 9, the latter constituting a bearing for the cheek piece, and being provided with a trunnion which enters and is adapted to rock in the bearing 10.
Each cheek piece comprises a flat sided body portion 11 adapted to bear on the inner side of one of the lever divisions 8, a trunnion 12 projecting from one side of the body portion 11 and formed integrally therewith or attached rigidly thereto, the trunnion being fitted to turn in the socket l0, and a substantially U-shaped iange 13 having a segmental inner face 14, the greater portion of which is concentric with the trunnion 12. The flange 13 has upper and lower flat faces 15 which abut against opposed shoulders 16 o-n the piston rod or plunger 7, said rod having a reduced squared portion 17 located between the two cheek pieces. Each cheek piece also includes a cap piece 18 which is a iiat metal plate having the same marginal contour as the flange 13, and adapted, when placed upon the outer edge of said flange, to close the outer side of the space between the segmental inner wall 14 and trunnion 12.
The cap piece 18 is placed on the outer edge of the flange 13 after the latter has been applied to the lever. The cap piece is then firmly attached to the flange, prefer ably by a welding operation, the welding being caused by the application of the iame of a welding torch to the joint between the flange and the cap plate. Il desired, however, the cap plate may be attached by electric welding or brazing. The attachment of the cap, as described, converts .the cheek piece into a box which practically incloses the segmental end portion of the lever division to which the cheek piece is applied.
The cap piece bears closely against the outer side oit the Alever division 8, and while permitting` the cheek piece to oscillate to the extent required, it prevents any loose lateral wabbling motion of the cheek piece, and at the same time, is adapted to confine graphite inserted between the contacting surfaces of Vthe cheek piece and lever.
It will be seen ,that the cheek piece and the cap piece united thereto as described, constitute practically a single unitary part having no member or Vmembers liable to be loosened or disconnected, no screws, rivets or other separable fastening devices being employed in securing the two cheek pieces f to the lever.
It is obvious that my invention may be embodied in a single lever arm S and single cheek piece secured thereto, as described.
I claim z- An oscillatory lever or arm having a transverse circular socket, a segmental bearing edge substantially concentric with the socket and a cheek piece formed to bear 0n one side of the lever and having a trunnion fitted to turn in said socket, a liange having a segmental i-nner face in sliding contact with `the segmental edge face of the lever and external -faces formed to engage shoulders on a movable rod, and a cap piece attached as described to the outer edge of said flange and forming, with the cheek piece and liange, a. box inclosing the portion of the lever having the segmental edge.
Signed at Boston, in the county of Suffolk and State voie Massachusetts, this seventh day of October, A. D. 1913.
REUBEN HILT.
Witnesses F. 7. HERRIGK, E. O. HOWARD.
Copies of this patent may be obtained 'for ive cents each, by addressing the Commissioner of latentl Washington, iD. C.
US79413613A 1913-10-08 1913-10-08 Oscillating lever for operating pump-pistons, &c. Expired - Lifetime US1091136A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508469A (en) * 1945-05-15 1950-05-23 Remington Arms Co Inc Ammunition making machinery
US4283961A (en) * 1977-07-25 1981-08-18 Societe De Paris Et Du Rhone Actuator of an electrical starter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508469A (en) * 1945-05-15 1950-05-23 Remington Arms Co Inc Ammunition making machinery
US4283961A (en) * 1977-07-25 1981-08-18 Societe De Paris Et Du Rhone Actuator of an electrical starter

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