公开(公告)号：US5092427A

公开(公告)日：1992-03-03

申请号：US727187

申请日：1991-07-09

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B25B5/04 ,  B25H1/04 ,  E06C1/18 ,  E06C1/38

CPC classification number: E06C1/38 ,  B25B5/04 ,  B25H1/04 ,  E06C1/18

Abstract: A convertible ladder-clamp combination as disclosed which includes first and second sides each having upper and lower end portions and a plurality of rungs therebetween. Each upper end portion carries a clamping member between which an object can be clamped when the lower ends of the sides are moved apart. The sides are preferably selectively adjustably connected to each other at the upper portions to thereby vary the spatial relationship between the clamping members to effect clamping of different size objects. At least one of the clamping members may be mounted in a slidable biased relationship to the other of the clamping members to provide a yielding clamping force to an object clamped therebetween which is particularly advantageous when clamping fragile, brittle or like objects.

Abstract translation: 所公开的可转换梯形钳组合，其包括第一和第二侧，每个侧面具有上端部和下端部以及多个梯级。 每个上端部分带有夹紧构件，当侧面的下端移开时，夹紧构件可夹在其间。 侧面优选地在上部彼此可选地可调节地连接，从而改变夹紧构件之间的空间关系，以实现不同尺寸物体的夹紧。 夹紧构件中的至少一个可以以可滑动的偏置关系安装到夹紧构件中的另一个中，以向夹在其间的对象提供屈服夹紧力，这在夹紧易碎，脆性或类似物体时是特别有利的。

公开(公告)号：US4111732A

公开(公告)日：1978-09-05

申请号：US454003

申请日：1974-03-22

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29D30/08 ,  B29D30/54 ,  B29H17/36

CPC classification number: B29D30/542 ,  B29D30/08 ,  B29D2030/582 ,  Y10S156/909

Abstract: The present disclosure is directed to a novel process of and molds for applying rubber, preferably precured rubber, to tires and other objects, wherein in a preferred form of the invention a generally annular matrix is provided defined by a pair of relatively movable annular matrix portions, the pair of movable annular matrix portions defining an annular housing in a closed position thereof in which a tire is adapted to be retreaded, a bladder within the housing, the bladder including opposite annular edges, means for securing both annular edges to but one of the matrix portions whereby the bladder and the one matrix portion define a pressurization chamber, and means for pressurizing the interior of the chamber augmented by ancillary heating to achieve retreading of the tire.In further embodiments of the invention tire wall plates of rigid, resilient or pneumatic structure are provided and in lieu of the bladder described a plurality of bladders tubular or having annular edges connected to associated matrix portions may be provided.

公开(公告)号：US4013389A

公开(公告)日：1977-03-22

申请号：US637690

申请日：1975-12-04

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29C43/10 ,  B29D30/06 ,  B29D30/54 ,  B29H5/04

CPC classification number: B29D30/0606 ,  B29C43/104 ,  B29D30/54 ,  Y10S425/005

Abstract: This disclosure relates to a retread mold defined by a pair of relatively movable platens, means for imparting relative motion to the platens between spaced open and closed positions thereof, a matrix carried by each platen, biasing means between each platen and its associated matrix for biasingly urging the matrices and platens to a position of spaced relationship from each other in the open position of the platens, and the spaced relationship being reducible in opposition to the force of the biasing means upon movement of the platens to the closed position thereof.

Abstract translation: 本公开涉及由一对相对可移动的压板限定的翻转模具，用于在间隔开的和闭合位置之间给予压板的相对运动的装置，由每个压板承载的矩阵，在每个压板和其相关联的矩阵之间的偏置装置 在所述压板的打开位置中将所述矩阵和压板推压到彼此间隔开的位置，并且当所述压板移动到所述压板的关闭位置时，所述间隔关系可相对于所述偏压装置的力而减小。

公开(公告)号：US4310374A

公开(公告)日：1982-01-12

申请号：US159496

申请日：1980-06-16

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29D30/56 ,  B29H17/36

CPC classification number: B29D30/56 ,  B29D2030/545

Abstract: This disclosure is directed to a tire retreading machine which includes a chamber adapted to receive therein a plurality of stacked tires adapted to be retreaded therein, the chamber having an inner surface, and inwardly therefrom there being a radiant heater, a porous or perforated shield, and an imperforate or nonporous shield with the latter being axially shorter than the former and both shields being spaced from a bottom surface of the chamber such that upon heat being generated by the radiant heater, hot air convection currents are set up within the chamber flowing generally upwardly adjacent the chamber inner surface and flowing generally downwardly between the imperforate shield and tires within the chamber to create substantially uniform curing or retreading temperature throughout the chamber, lessening temperature gradients or hot spots, and also allowing radiant heat to pass through a lower portion of the porous shield adjacent the bottom surface of the chamber to augment temperature uniformity through the chamber, the tire retreading machine also includes a novel mechanism for opening and closing an upper end of the chamber utilizing a cover which is moved linearly along a path defined by coincident axes of the cover and the chamber, and also along an arcuate path between an open position of the cover and an out-ot-the-way position thereof.

Abstract translation: 本公开涉及一种轮胎翻新机，其包括适于在其中容纳适于在其中翻新的多个堆叠轮胎的腔室，所述腔室具有内表面，并且其内部具有辐射加热器，多孔或穿孔护罩， 以及无孔或无孔屏蔽，其后者比前者轴向短，并且两个屏蔽件与腔室的底表面间隔开，使得在由辐射加热器产生的热量时，热空气对流电流被设置在室内流动 向上邻近腔室内表面，并且在无孔护罩和腔室内的轮胎之间大致向下流动，以在整个腔室中产生基本上均匀的固化或翻新温度，减轻温度梯度或热点，并且还允许辐射热通过 邻近室的底表面的多孔屏蔽件以增加温度 轮胎翻新机还包括一种新颖的机构，该机构利用一个盖子，该盖子沿着由盖子和腔室的重合轴线限定的路径直线移动，并且还沿着一个 在盖的打开位置和其外部位置之间的弧形路径。

公开(公告)号：US4212605A

公开(公告)日：1980-07-15

申请号：US32401

申请日：1979-04-23

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29D30/06 ,  B29H5/04

CPC classification number: B29D30/0601

Abstract: The disclosure relates to a novel molding machine which includes the usual matrices and bead aligner wheels but additionally includes an expandable chamber adapted to receive a pressurized medium therewithin and thereby to expand and urge the matrices into intimate face-to-face engagement, together with locking means in the form of a plurality of locking slides for locking the matrices in intimate engagement.

Abstract translation: 本公开涉及一种新颖的成型机，其包括通常的基质和珠子对准器轮，但另外包括可膨胀室，其适于在其中接收加压介质，从而扩展并促使基体与密封面接合，以及锁定 以多个锁定滑块的形式的装置，用于将矩阵锁定在紧密接合中。

公开(公告)号：US4190405A

公开(公告)日：1980-02-26

申请号：US4578

申请日：1979-01-18

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29C33/02 ,  B29C35/02 ,  B29D30/54 ,  B29H5/04

CPC classification number: B29C33/02 ,  B29D30/54 ,  B29C2035/0211 ,  B29L2030/00

Abstract: This disclosure is directed to a heating device particularly adapted for tire treading and/or retreading matrices and includes a body having a continuously unending channel formed in an exterior peripheral surface of the matrix body in which is disposed an electric or steam heating element having opposite end portions in lapping relationship with the heating element being generally encased in a body of cast metallic material, and means in the form of a generally Z-shaped spacer traversing the channel and separating the solid material encasing the end portions on each other to permit the heating element to expand and/or contract.

Abstract translation: 本公开涉及一种特别适用于轮胎踩踏和/或翻新矩阵的加热装置，并且包括具有形成在基体的外周表面中的连续不变通道的主体，其中设置有具有相对端的电或蒸汽加热元件 与加热元件的研磨关系的部分通常包裹在铸造金属材料的主体中，以及横穿通道的通常为Z形的间隔件的形式的装置，并将包封端部的固体材料彼此分离，以允许加热 元素扩展和/或合同。

公开(公告)号：USRE29633E

公开(公告)日：1978-05-16

申请号：US806451

申请日：1977-06-14

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29C67/00 ,  B29D30/00 ,  B29D30/06 ,  B29D30/54

CPC classification number: B29D30/0606 ,  B29D30/54 ,  Y10T408/91 ,  Y10T409/309576 ,  Y10T74/18616

Abstract: This disclosure relates to a mechanism for maintaining alignment between two relatively movable members, specifically platens or supports for retreading molds, although not limited thereto, and includes a pair of generally parallel screws .Iadd.having a common feed mechanism, the screws being fixed to the members against axial movement relative to each other .Iaddend.with .[.means for axially shifting.]. one of the screws .Iadd.being shiftable .Iaddend.relative to the .[.other.]. .Iadd.feed mechanism .Iaddend.to maintain alignment between the two platens or supports.

公开(公告)号：US4022554A

公开(公告)日：1977-05-10

申请号：US643648

申请日：1975-12-23

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29D30/06 ,  B29D30/54 ,  B29H5/04

CPC classification number: B29D30/54 ,  B29D30/0629 ,  B29D2030/063

Abstract: This disclosure relates to retread molds adapted for manual, semi-automatic, or fully automatic operation in either bag or bagless retreading operations, and includes a pair of bead aligner wheels which are retracted to permit tire beads to become self-adjusting or floating thereby seeking their own natural position permitting a wider range of tire sizes to be properly cured in the same matrix, the molds further including a seal in the form of at least a single O-ring seal contacting the exterior of each tire side wall to preclude pressurized fluid within the mold cavity from escaping to atmosphere, and in the automatic version means are provided for automatically inserting a bag in the tire, locking the mold, inflating the bag, and reversing these functions prior to the removal of the cured tire.

Abstract translation: 本公开涉及适用于袋或无袋式翻新操作中的手动，半自动或全自动操作的翻新模具，并且包括一对缩回以允许轮胎胎圈自调整或浮动从而寻求 它们自己的自然位置允许更宽范围的轮胎尺寸在相同的基质中适当地固化，模具还包括至少一个O形环密封件形式的密封件，该密封件接触每个轮胎侧壁的外部，以排除加压流体 在模腔内逸出到大气中，并且提供自动版本装置，用于在移除固化轮胎之前自动将袋插入轮胎中，锁定模具，使袋膨胀，并使其反转。

公开(公告)号：US4293293A

公开(公告)日：1981-10-06

申请号：US187339

申请日：1980-09-15

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29C43/10 ,  B29D30/54 ,  B29H5/04 ,  B29H5/02

CPC classification number: B29D30/0654 ,  B29C43/104 ,  B29D30/54 ,  B29D2030/0655 ,  B29D2030/582 ,  Y10S425/812

Abstract: A tire retreading bladder which includes a generally angular member of a U-shaped cross-sectional configuration defined by a bight portion and a pair of legs with the annular member defining an interior volume, each leg terminating in a terminal edge of a generally circular configuration, each leg having interior and exterior surfaces, a plurality of pairs of closely adjacent ribs along the exterior surfaces for venting air from between such exterior surfaces and an interior surface of an associated tire adapted to receive therewithin the bladder, each pair of ribs setting off a venting groove therebetween, and venting means further including transverse venting slots disposed lengthwise along the ribs.

Abstract translation: 一种轮胎翻新囊，其包括由弯曲部分限定的U形横截面构造的大致角形构件和一对腿部，环形构件限定内部容积，每个腿终止于大致圆形构造的终端边缘 每个腿具有内部和外部表面，沿着外表面的​​多对紧密相邻的肋条，用于从这些外表面之间排出空气和适于在其中容纳膀胱的相关联轮胎的内表面，每对肋条脱落 其间具有通风槽，并且排气装置还包括沿着肋沿纵向设置的横向通风槽。

公开(公告)号：US4246226A

公开(公告)日：1981-01-20

申请号：US101556

申请日：1979-12-07

Applicant: Kenneth T. MacMillan

Inventor： Kenneth T. MacMillan

IPC: B29C35/02 ,  B29D30/06 ,  B29H5/02

CPC classification number: B29D30/0601 ,  B29C35/0244

Abstract: This disclosure includes a novel method of and apparatus for utilizing dry pulverulent heated material for curing a tire by positioning a tire encased in a pervious cover within a chamber, filling the chamber with dry pulverulent heated material, utilizing adjustable heating panels in exterior surrounding relationship to the pulverulent material within the chamber to heat the pulverulent material and thus cure the tire, and providing a circulation system for the pulverulent material for feeding the same into and removing the same from the chamber.

Abstract translation: 本公开内容包括一种新颖的方法和装置，其用于利用干粉状加热材料来固化轮胎，方法是将封装在透气罩内的轮胎定位在室内，用干粉状加热的材料填充室，利用可调节的加热板在外部周围关系 室内的粉状材料以加热粉状材料，从而固化轮胎，并提供用于粉末材料的循环系统，用于将其从腔室中进给并从其中移出。