Nov. 12, 194.6. A. D. LANDEIRS ETAL 2,411,135 LATHE FOR TURNING LASTS OR THE LIKE FiledJuly 27, 1944 2 Sheets-Sheet l 1. Med cHZi'onD.La22dez4s, fly m Nov. 12, 1946. A. D. LANDERS EI'AL LATHE FOR TURNING LASTS OR THE LIKE ’ Filed Jul-y‘27r, 1944 2 Sheets-Sheet 2 9 48 2,411,135 Patented Nov. 12, 1946 2,411,135 UNITED STATES PATENT OFFICE 2,411,135 LATHE FOR TURNING LASTS ‘OR THE LIKE Alton D. Landers and Fred H. Lindsay, Brockton, Mass., assignors to Woodard & Wright Last (30., East Bridgewater, Mass., a corporation of Mas sachusctts ‘ Application July 27, 1944, Serial No. 546,777 ‘ 1 4 Claims. (Cl. 142—15) 2 r . Our present invention relates to improvements The lathe bed 5 has parallel ways Ill to slidably in last turning or like lathes and particularly to support the carriage H for the model wheel I2 the drive for the swing frame and the controls and the carriage l3 in which is journalled the therefor. This application is a continuation-in shaft M for the cutter head IS. The carriage part of our co-pending application, Serial No. 5 I3 also supports the motor l6 connected to the 424,742, ?led December 29, 1941, which has now shaft 14 by belting H to drive the cutter head. matured into Letters Patent No. 2,354,689, dated The lathe is conventional in that the carriages August 1, 1944. "I I and 13 are interconnected by adjustable link ‘ In such lathes, the swing frame rotatably sup age so that equal, greater, or lesser movement of ports the model and the block to be‘turned and 10 the carriage ll results on movement of the car the drive for the model and block includes shafts riage I3. As the‘ linkage by which such "grad and belting from the source of power common ing” is accomplished is conventional, we have to other lathe drives. Disadvantages of such a shown only‘the lever 18 fulcrumed as at [9 as drive relate both to economy in operation and indicative of such mechanism. ef?ciency in use. 15 The carriages II and‘ I3 are driven by a motor In accordance with our invention, we provide 20 having a belted connection 2| with a worm the swing‘frame with a drive consisting of an 22 journalled in the frame 5. The worm .22 electric motor mounted on the swing frame driv meshes with a gear 23 on a shaft 24 journalled ing the rotatable supports for the model and the in the frame 5 and which has a, gear 25 meshing work to be turned through any suitable gear re 20 with a rack 26 carried by the carriage l3 (see duction unit. We provide control means to close Fig. 2). ‘ ' l the circuit to the motor when the swing frame The swing frame 8 has conventional rotatable is swung between predetermined inoperative po model supports 21 and 28 and similar rotatable sitions close to or remote from the axis of the supports 2'9 and 30 to support the work to be model wheel. turned. The supports 21 and 29 include gears This control includes a brake operable when 3| and 32 meshing with gears 33 and 34 on the ever the swing frame is in its outward inopera drive shaft 35 journalled in the swing frame 8. tive position to stop the rotation of the motor In accordance with our present invention, we and the rotatable supports for the model and mount an electric motor 36 on the swing frame the work to be turned when the power source 30 8, the circuit 31 to which includes a switch 38 is disconnected therefrom. mounted on the overhead support ‘I. The drive Our invention makes possible a simple and com for the shaft 35 may conveniently consist of a pact swing frame drive ensuring accuracy of work, worm 39, the pulley 40 of which is connected to economy in operation and contributes both to the motor‘ pulley 4| by a belt 42. The worm 39 simplicity and economy in the construction and 35 meshes with a gear 43 fast on the drive shaft 35. operation of lathes in accordance with our in When the lathe is in use, the rotating model vention. supported in the swing frame 8 engages with the In the accompanying drawings, we have illus advancing model wheel l2 thereby causing the trated our invention as embodied in a last turn work to be turned to be spaced correspondingly ing lathe. While the details of construction of 40 with respect to the advancing cutter head l5 so the lathe itself is unimportant to the present in that the work will be shaped similarly to the vention, su?icient detail has been shown to per model. It has been the practice to provide a mit the novel features and advantages of our in weight to control the swinging of the swing frame vention to be readily understood. to ensure the constant contact of the model with 45 the model wheel. In the drawings: Fig. 1 is a fragmentary front view of alast In accordance with our invention, we control turning lathe in accordance with our invention. the swinging of the frame 8 by connecting the Fig. 2 shows the lathe of Fig. 1 in end view, bottom of the frame 8 to a crank 44 journalled in and the lathe frame by a link 45. The crank shaft Fig. 3 is a fragmentary top plan view of the 50 46 has a pair of collars 41 to which the vweight lathe. 4B is eccentrically pivoted so that its in?uence on The lathe shown in the drawings consists of a the swing frame is constant as the swing frame bed 5 supported in a frame establishing lugs 6 8 swings towards or away from the vertical. and an overhead support ‘I to which the swing On the overhead support ‘I, we mount a guide 65 49 to slidably receive one end of the control mem frame 8 is pivotally connected as at 9. 2,411,135 3 4 her 50, the other end of which is pivotally con nected as at 5| to the swing frame 8 above the motor 36. The member 50 controls the switch 38. As here shown, the switch 38 has a control arm 52 disposed to be actuated by either of the frame and slidably supported by said ?rst frame, cam surfaces 53 with which the control member 50 is formed. Preferably, the cam surfaces 53‘ are spaced'to actuate the switch 38 to open the circuit to the motor 36 when the swing frame is said switch control arm having portions engage able with said switch arm to open said switch when said second frame is swung outwardly into a predetermined inoperative position'and to close said switch when swung inwardly into a prede terminejd operative position, and abrake shoe supported by said switchlcontrol arm to engage with said driving means when said second frame in predetermined inoperative position closely ad‘-' 10 isin said inoperative position. jacent or remote from the model wheel 12 and the cutter head l5. 2. In a lathe for turning lasts or the like from blocks to correspond to a. model, a ?rst frame, a second frame pivotally connected to said ?rst frame to swing outwardly and inwardly in de disposed ?ange 56. We attach a brake element 15 sired relation thereto, rotatable model and block supporting means carried by said second frame, 51 to the flange 56 by bo1ts‘58 with the brake driving means to rotate said supporting means element 5'! being resiliently backed by springs carried by said second frame, an electric motor 59. The brake element is disposed to engage supported on said second frame, a belted con with the motor pulley 4 I :when the swing frame 8 is swung into its outward inoperative position to 20 nection between said »motor and said driving means, a circuit to said motor including a switch brake the drive for the model and the work‘when mounted on said ?rst frame including an arm, a, the circuit 31 to the motor 36 is opened. switch control arm ,pivotally connected to said By this construction, we provide for increased second frame and slidably supported by said efficiency and economy in the operation of lathes. This is due to the use of a separate motor mount 25 ?rst frame, said control arm having spaced por tions engageable with said switch arm to open ed on the swing frame, the controls therefor, and and close said switch when said second arm is the mounting of the weight to control thevswing' Adjustably, clamped as at '54 ,'to the control member 50 is a bracket 55 having an outwardly frame so that its effect is always constant. What we therefore claim and desire to secure by Letters Patent is: _ , , ‘1. In a lathe for turning lasts, or the like from blocks to correspond to a model, a first‘ frame, swung into an outward inoperative position or an inward operative position, and a brake shoe, so means carried by said control arm to support said brake shoe in a position to engage with said connection when said second frame is in its in a second frame pivotally connected to said ?rst operative position. frame to swing outwardly and inwardly in de 3. The lathe of claim 2 in which the brake shoe supporting means comprises a support slid sired relation thereto, rotatable model and block supporting means carried by said second'frame, ' ' ably anchored to the control arm to permit the relation of‘ the brake shoe to the connection to driving means to rotate said supporting means be adjusted. ' ' . carried by said second frame, an electric motor supported on said second frame operatively con 4-. The lathe of claim 2 in which the brake shoe nected to said second frame, a circuit to said 40 is resiliently connected to the brake shoe sup porting means. ‘ ‘ motor including a switch mounted on said ?rst ALTON D. LANDERS.‘ frame, said switch including an arm, a switch control arm pivotally connected to said second FRED H. LINDSAY. '