公开(公告)号：US4907481A

公开(公告)日：1990-03-13

申请号：US092038

申请日：1987-09-02

Applicant: Jim Dvorak ,  Charles J. Dvorak

Inventor： Jim Dvorak ,  Charles J. Dvorak

IPC: B21D28/04

CPC classification number: B21D28/04 ,  Y10T29/49897 ,  Y10T83/8759 ,  Y10T83/8858 ,  Y10T83/9483

Abstract: A latch mechanism in one position causes a ram and the punch mounted thereon to be forcefully actuated in unison with the pivotal arm constituting part of the drive means. In a second position of the latch mechanism, the ram, together with the punch, can be manually lowered without being powered so that an alignment of the die with the punch can be achieved before performing a powered punching operation.

Abstract translation: 一个位置的闩锁机构使得冲头和安装在其上的冲头与构成驱动装置的一部分的枢转臂一起被强制地致动。 在闩锁机构的第二位置，可以在不进行动力的情况下手动地降低压头与冲头，使得在执行动力冲压操作之前可以实现模具与冲头的对准。

公开(公告)号：US20120141252A1

公开(公告)日：2012-06-07

申请号：US13273561

申请日：2011-10-14

Applicant: Jim Dvorak

Inventor： Jim Dvorak

IPC: F03D3/04 ,  F03D7/00

CPC classification number: F03D3/0454 ,  B60K16/00 ,  F03D9/32 ,  F05B2240/221 ,  F05B2250/711 ,  F05B2250/712 ,  Y02E10/74

Abstract: A wind driven turbine device is disclosed that includes a housing having an air inlet and an air outlet, a turbine rotor having a plurality of radially distributed turbine rotor blades mounted in the housing for rotation in direct response to atmospheric wind to thereby generate rotary power, a baffle arrangement is also provided for directing wind through the housing from the air inlet to contact the turbine rotor blades from a plurality of angles as internal driving wind.

Abstract translation: 公开了一种风力涡轮机装置，其包括具有空气入口和空气出口的壳体，涡轮转子，其具有安装在壳体中的多个径向分布的涡轮转子叶片，用于直接响应大气风旋转，从而产生旋转动力， 还提供了一种挡风布置，用于将风从空气入口引导通过壳体，以将多个角度的涡轮转子叶片接触作为内部驱动风。

公开(公告)号：US4054075A

公开(公告)日：1977-10-18

申请号：US742418

申请日：1976-11-17

Applicant: Jim Dvorak

Inventor： Jim Dvorak

IPC: B23D15/00 ,  B26D5/12

CPC classification number: B23D15/00 ,  B26D5/12 ,  Y10T83/885 ,  Y10T83/8866

Abstract: The shear mechanism includes two fixed plates and a plate movable therebetween. The movable plate has a notch in one side edge which is moved out of registry with notches in the fixed plate to effect a shearing operation, the movable plate having a blade associated with its notch and one of the fixed plates having a cooperable blade associated with its notch. The fixed plates each have two appropriately located circular holes in which are received a first pair of pins, the pins extending through slots in the movable plate so that the blade on the movable plate can move sufficiently relative to the blade on the fixed plate to perform its shearing operation. Offset from the slots in the movable plate are two appropriately located circular holes in which are received a second pair of pins, the second pair of pins extending through slots in the fixed plate of sufficient size so that the shearing action can take place. A first pair of actuating arms (one at each side of the mechanism) is pivotally mounted on one of the first pair of pins and a second pair of actuating arms (one at each side of the mechanism) is pivotally mounted on the other of said first pair of pins. The first pair of actuating arms is pivotally connected to one of the second pair of pins, and the second pair of actuating arms is pivotally connected to the other of said second pair of pins with the consequence that the movable plate is supported on and actuated by said arms so that when the ends of the arms remote from said first and second pair of pins are forcibly spread apart, the notch in the movable plate is moved out of registry with the notches in the fixed plates to enable the blades to perform the shearing operation.

Abstract translation: 剪切机构包括两个固定板和可在其间移动的板。 可移动板在一个侧边缘中具有凹口，该切口在固定板中移出与切口对准以进行剪切操作，可移动板具有与其凹口相关联的叶片，并且其中一个固定板具有与 它的缺口。 固定板每个都具有两个适当定位的圆形孔，其中容纳有第一对销，所述销延伸穿过可移动板中的槽，使得可移动板上的刀片可相对于固定板上的刀片充分移动以执行 其剪切操作。 从可移动板中的狭槽偏移的是两个适当定位的圆形孔，其中接收有第二对销，第二对销通过足够尺寸的固定板中的槽延伸，使得可以发生剪切动作。 第一对致动臂（机构的每一侧一个）枢转地安装在第一对销中的一个上，第二对致动臂（机构的每一侧一个）枢转地安装在所述第一对销中的另一个上 第一对针。 第一对致动臂枢转地连接到第二对销中的一个，并且第二对致动臂枢转地连接到所述第二对销中的另一个，结果是可移动板被支撑在并由其驱动 所述臂使得当远离所述第一和第二对销的臂的端部被强制地分开时，可移动板中的切口被移出与固定板中的凹口对准，以使得叶片能够执行剪切 操作。

公开(公告)号：US3945287A

公开(公告)日：1976-03-23

申请号：US503878

申请日：1974-09-06

Applicant: Jim Dvorak

Inventor： Jim Dvorak

IPC: B23D15/12 ,  B26D5/16 ,  B26D5/42

CPC classification number: B23D15/12 ,  B26D5/16 ,  Y10T83/5669 ,  Y10T83/8837 ,  Y10T83/8843 ,  Y10T83/8871 ,  Y10T83/8878 ,  Y10T83/9478

Abstract: A metal plate shears for cutting large sheets of metal includes a fixed blade, and a movable blade cooperable therewith. The movable blade is mounted on a plate having a plurality of circular apertures therein. Discs are mounted in these apertures, the discs being eccentrically supported, the axes of the eccentrics being in the same angular relation to and the same angular relation from, the centers of the discs. Arms are secured to the discs, and hydraulic means are provided for rotating the discs about their eccentric axes. Rotation of the discs lowers the plate bearing the movable cutting knife past the fixed knife, shearing off a sheet inserted between the blades.

Abstract translation: 用于切割大片金属的金属板剪切件包括固定刀片和与之配合的可动刀片。 可动刀片安装在其中具有多个圆形孔的板上。 盘安装在这些孔中，盘被偏心地支撑，偏心轮的轴线与盘的中心具有相同的角度关系和相同的角度关系。 臂被固定到盘上，并且提供液压装置用于围绕其偏心轴线旋转盘。 盘的旋转降低了带有可移动切割刀的板通过固定刀，剪切插入叶片之间的片材。

公开(公告)号：US08052372B1

公开(公告)日：2011-11-08

申请号：US12957599

申请日：2010-12-01

Applicant: Jim Dvorak

Inventor： Jim Dvorak

IPC: F03D3/04

CPC classification number: F03D3/0454 ,  B60K16/00 ,  F03D9/32 ,  F05B2240/221 ,  F05B2250/711 ,  F05B2250/712 ,  Y02E10/74

Abstract: A wind driven turbine device is disclosed that includes a housing having an air inlet and an air outlet, a turbine rotor having a plurality of radially distributed turbine rotor blades mounted in the housing for rotation in direct response to atmospheric wind to thereby generate rotary power, a baffle arrangement is also provided for directing wind through the housing from the air inlet to contact the turbine rotor blades from behind as internal driving wind. The rotor is mounted in a manner such that the rotor blades are driven both by a combination of direct external wind and internally directed wind.

Abstract translation: 公开了一种风力涡轮机装置，其包括具有空气入口和空气出口的壳体，涡轮转子，其具有安装在壳体中的多个径向分布的涡轮转子叶片，用于直接响应大气风旋转，从而产生旋转动力， 还提供了一种挡风布置，用于将风从空气入口引导穿过壳体，以将涡轮转子叶片从后面接触作为内部驱动风。 转子以这样的方式安装，使得转子叶片由直接的外部风和内部风的组合驱动。

公开(公告)号：US5170689A

公开(公告)日：1992-12-15

申请号：US702887

申请日：1991-05-20

Applicant: Jim Dvorak

Inventor： Jim Dvorak

IPC: B23D31/00

CPC classification number: B23D31/00 ,  Y10T83/408 ,  Y10T83/42 ,  Y10T83/814 ,  Y10T83/822 ,  Y10T83/8801 ,  Y10T83/8815 ,  Y10T83/8878 ,  Y10T83/95

Abstract: A metal working machine (10) is disclosed according to the preferred form including a punching station (48) associated with a first crank arm (18) pivotably mounted to the frame (12) by a first pivot pin (20) and including multiple shearing stations (50a-e) associated with a second crank arm (26) pivotably mounted to the frame (12) by a second pivot pin (28). A link (36) has its opposite ends pivotably mounted by pivot pins (38, 40) to the first and second crank arms (18, 26), respectively. An expandable and contractable actuator (42) having its opposite ends pivotably mounted by pivot pins (44, 46) to the first and second crank arms (18, 26) simultaneously pivots the crank arms (18, 26) about the first and second pivot pins (20, 28) in opposite directions. The pivot pins (20, 28, 38, 40, 44, 46) are spaced from and parallel to each other. The force is transferred to the crank arm (18, 26) associated with the working station (48, 50a-e) being utilized by the actuator (42) directly pushing on that crank arm and by the link (36) acting through the other crank arm being pivoted in the opposite direction by the actuator (42). In the preferred form, a wing (60) and an arcuate ear (62) are integrally formed with and in the plane of the second crank arm (26) and extend beyond the shearing edges (56, 58) of the shearing station (50e). The wing (60) is spaced from the second pivot pin (28) and the arcuate ear (62) extends concentrically around the second pivot pin (28).

Abstract translation: 根据优选形式公开了一种金属加工机（10），包括与通过第一枢轴销（20）可枢转地安装到框架（12）上的第一曲柄臂（18）相关联的冲压站（48），并且包括多个剪切 与通过第二枢转销（28）可枢转地安装到框架（12）的第二曲柄臂（26）相关联的站（50a-e）。 连杆（36）的相对端分别由枢轴销（38,40）可枢转地安装到第一和第二曲柄臂（18,26）上。 具有可枢转地安装在第一和第二曲柄臂（18,26）上的枢轴销（44,46）的相对端的可膨胀和可收缩的致动器（42）同时使曲柄臂（18,26）围绕第一和第二枢轴 销（20,28）在相反方向。 枢轴销（20,28,38,40,44,46）彼此间隔开并平行。 该力传递到与由致动器（42）利用的工作站（48,50a-e）相关联的曲柄臂（18,26），该致动器（42）直接推动该曲柄臂和通过另一个作用的连杆（36） 曲柄臂由致动器（42）沿相反方向枢转。 在优选形式中，翼（60）和弓形耳（62）与第二曲柄臂（26）的平面形成并且在第二曲柄臂（26）的平面内并延伸超出剪切台（50e）的剪切边缘（56,58） ）。 机翼（60）与第二枢转销（28）间隔开，并且弓形耳（62）同心地围绕第二枢轴销（28）延伸。