Metal working crank and slide press mechanism

Claim 2

Metal working crank and slide press mechanism for reciprocating a member in axial direcTions in a straight line motion comprising a. a power driven crank actuated connecting rod, b. a straight line motion assembly pivotally connected to the connecting rod consisting of a pivotally and bodily movable cross head and side thrust resisting levers extending in opposite directions from the cross head and each pivotally connected at one end to a fixed part of the machine, c. means pivotally connecting the other end of each of the levers to the assembly at points diametrically equally spaced from the pivotal point of the assembly, and d. means pivotally connected to the assembly and to the reciprocated member, whereby angular thrust of the connecting rod is translated into a direction in line with the travel of the reciprocated member.

Claim 3

The mechanism defined by claim 1, in which the means pivotally connected to the assembly and to the reciprocated member is a second connecting rod which has an end circumferentially engaging the assembly and an opposite end pivotally connected to the reciprocated member.

Claim 4

Metal working crank and slide press mechanism for reciprocating a ram in axial directions in a straight line motion comprising a. a ram, b. a reciprocable carriage in which the ram is mounted, c. a power driven crank actuated connecting rod, d. a straight line motion assembly pivotally connected to the connecting rod consisting of a pivotally and bodily movable cross head and side thrust resisting levers extending in opposite directions from the cross head and each being pivotally connected at one end to a fixed part of the machine, e. means pivotally connecting the other end of each of the levers to the assembly at points diametrically equally spaced from the pivotal point of the assembly, and f. a carriage connecting rod connected to the assembly and to the carriage, whereby angular thrust of the connecting rod is translated into a direction in line with the travel of the carriage.

Claim 5

Metal working crank and slide press mechanism for reciprocating a ram in axial directions in a straight line motion comprising a. a ram, b. a reciprocable carriage in which the ram is mounted, c. a power driven crank actuated connecting rod, d. a straight line motion assembly pivotally connected to the connecting rod consisting of a pivotally and bodily movable cross head and side thrust resisting levers extending in opposite directions from the cross head and each being pivotally connected at one end to a fixed part of the machine, e. means pivotally connecting the other end of each of the levers to the assembly at points diametrically equally spaced from the pivotal point of the assembly, and f. a carriage connecting rod connected to the assembly and to the carriage, whereby angular thrust of the connecting rod is translated into a direction in line with the travel of the carriage.

Claim 6

The mechanism defined by claim 3, in which the carriage connecting rod has an end circumferentially engaging the assembly and an opposite end pivotally connected to the carriage.

Claim 7

The mechanism defined by claim 3, which includes parallel carriage ways at opposite sides of the carriage provided with bearing surfaces inclined downwardly toward each other in planes radially aligned with the center of mass of the carriage and ram, and in which the ram carriage is provided with rotatable wheels which travel on said inclined surfaces.

Claim 8

The mechanism defined by claim 3, in which the ram carriage is provided with rotatable wheels mounted adjustably eccentrically on studs fastened to the carriage, and which includes parallel carriage ways at opposite sides of the carriage on which the wheels travel with a predetermined amount of pre-load due to their adjustable eccentricity.

Claim 9

The mechanism defined by claim 5, in which the carriage wheels are mounted adjustably eccentrically on studs fastened to the carriage to provide a predetermined amount of pre-load on the wheels as they travel on the carriage ways.

Claim 10

The mechanism defined by claim 3, in which the ram carriage is provided with rotatable wheels, and which includes parallel carriage ways at opposite sides of the carriage, some of the wheels traveling on top of the carriage ways and others on the bottom surfaces of the ways.

Claim 11

The mechanism defined by claim 8, in which the carriage ways have upper wheel bearing surfaces inclined downwardly toward each other in planes radially aligned with the center of mass of the carriage and ram.

Claim 12

Metal working crank and slide press mechanism for reciprocating a ram and a sleeve on the ram in axial directions comprising a. frame members spaced apart transversely of the machine, b. parallel carriage ways between the frame members, c. a ram and a sleeve slidable on the ram, d. a carriage in which the ram is mounted, the carriage being provided with rotatable wheels for travel on the carriage ways, e. a Power driven crank actuated connecting rod which assumes extreme angular positions relatively to the ram, f. a straight line motion assembly pivotally connected to the connecting rod consisting of a pivotally and bodily movable cross head and side thrust resisting levers extending in opposite directions from the cross head, each pivotally connected at one end to the machine frame members and pivotally connected at the other end to the assembly at points equally diametrically spaced from the pivotal point of the cross head, g. a carriage connecting rod pivotally connected at one end to the assembly and at the other end to the carriage, h. a pair of transversely spaced apart actuator bars each connected to the slidable sleeve, i. a pair of cams each rotatable with the crank actuated connecting rod, j. a pair of actuator bar levers each pivotally connected to one of said actuator bars and to a frame member, and k. cam followers on the actuator bar levers in contact with the cams for slidably moving said sleeve on the ram in predetermined time and speed relatively to the ram, said straight line motion assembly translating the angular thrust of the connecting rod into a direction in line with the travel of the ram and sleeve.

Claim 13

Metal working crank and slide press mechanism for reciprocating a ram and a sleeve on the ram in axial directions comprising a. frame members spaced apart transversely of the machine, b. parallel carriage ways between the frame members, c. a ram and a sleeve slidable on the ram, d. a carriage in which the ram is mounted, the carriage being provided with rotatable wheels for travel on the carriage ways, e. a Power driven crank actuated connecting rod which assumes extreme angular positions relatively to the ram, f. a straight line motion assembly pivotally connected to the connecting rod consisting of a pivotally and bodily movable cross head and side thrust resisting levers extending in opposite directions from the cross head, each pivotally connected at one end to the machine frame members and pivotally connected at the other end to the assembly at points equally diametrically spaced from the pivotal point of the cross head, g. a carriage connecting rod pivotally connected at one end to the assembly and at the other end to the carriage, h. a pair of transversely spaced apart actuator bars each connected to the slidable sleeve, i. a pair of cams each rotatable with the crank actuated connecting rod, j. a pair of actuator bar levers each pivotally connected to one of said actuator bars and to a frame member, and k. cam followers on the actuator bar levers in contact with the cams for slidably moving said sleeve on the ram in predetermined time and speed relatively to the ram, said straight line motion assembly translating the angular thrust of the connecting rod into a direction in line with the travel of the ram and sleeve.

Claim 14

The mechanism defined by claim 10, in which the carriage ways are provided with bearing surfaces inclined downwardly toward each other in planes radially aligned with the center of the mass of the carriage and ram, and in which the ram carriage is provided with rotatable wheels which travel on said inclined surfaces.

Claim 15

The mechanism defined by claim 10, in which the ram carriage is provided with rotatable wheels mounted adjustably eccentrically on studs fastened to the carriage to provide a predetermined amount of pre-load on the wheels, and in which the ram carriage is provided with bearing surfaces inclined downwardly toward each other in planes radially aligned with the center of mass of the carriage and ram on which said wheels travel.

Claim 16

The mechanism defined by claim 10, in which the sleeve actuator bars are moved in one direction by the cams and cam followers, and which includes compressed air means for moving the actuator bars in the opposite direction and for controlling the contact between the cams and cam followers.

Claim 17

Metal working crank and slide press mechanism for reciprocating a ram a ram and a redraw sleeve on the ram in axial directions at different speeds, comprising a. frame members spaced apart transversely of the machine, b. parallel carriage ways between the frame members, c. a ram and a redraw sleeve slidable on the ram, d. a ram carriage traveling on the carriage ways, e. a power driven crank actuated connecting rod, f. a cross head assembly pivotally connected to the connecting rod and including slide thrust resisting levers pivotally connected to the cross head assembly and to the frame members, g. a carriage connecting rod pivotally connected at one end to the assembly and at the other end to the carriage, h. a pair of actuator bars, i. a redraw sleeve carriage connected to the redraw sleeve, j. a rocker arm pivotally connected to the redraw carriage and to said actuator bars, k. a pair of cams each rotatable with the crank actuated connecting rod, l. a pair of actuator bar levers each pivotally connected to one of said actuator bars and to a frame member, and m. cam followers on the actuator bar levers in contact with the cams for slidably moving said sleeve on the ram in predetermined time and speed relatively to the ram.

Claim 18

Metal working crank and slide press mechanism for reciprocating a ram a ram and a redraw sleeve on the ram in axial directions at different speeds, comprising a. frame members spaced apart transversely of the machine, b. parallel carriage ways between the frame members, c. a ram and a redraw sleeve slidable on the ram, d. a ram carriage traveling on the carriage ways, e. a power driven crank actuated connecting rod, f. a cross head assembly pivotally connected to the connecting rod and including slide thrust resisting levers pivotally connected to the cross head assembly and to the frame members, g. a carriage connecting rod pivotally connected at one end to the assembly and at the other end to the carriage, h. a pair of actuator bars, i. a redraw sleeve carriage connected to the redraw sleeve, j. a rocker arm pivotally connected to the redraw carriage and to said actuator bars, k. a pair of cams each rotatable with the crank actuated connecting rod, l. a pair of actuator bar levers each pivotally connected to one of said actuator bars and to a frame member, and m. cam followers on the actuator bar levers in contact with the cams for slidably moving said sleeve on the ram in predetermined time and speed relatively to the ram.

Claim 19

The mechanism defined by claim 14, in which the rocker arm is attached to the redraw carriage by rocker pivots, and at near its center to a shoe fixedly attached to the actuating bars by means of a rocker shaft, and said rocker arm is engaged by an adjustable stop screw which rests against the shoe, said shoe being engaged by a threaded stud extending through the rocker arm, a compression spRing and spring retainer.