US1932888A - Key operated cash register - Google Patents

Description

Oct. 31, 1933. A. H. GLEDHILL KEY OPERATED CASH REGISTER Filed June 13, 1932 2 Sheets-Sheet 1 Oct. 31, 1933.

A. H. GLEDHILL KEY OPERATED CASH REGISTER Filed June 13, 1932 2 Sheets-Sheet 2 Patented Oct. 31, 19 33 v H v UNITED STATES PATENT. UFFICE.

KEY OPERATED CASH REGISTER Arthur Henry Gledhill, Halifax, England Application June 13, 1932, Serial No. 616,989, and in Great Britain June 22, 1931 3 Claims. 235-45) This invention relates to a key operated cash the key coupler any or everykey of the register register in which means are provided whereby is formed with a short slot a for the passage of a key or keys can be latched on to a common the key supporting shaft a so that any or every coupler so that when any other key is pressed the key can receive the aforesaid displacement in atched key or keys will also be depressed and relation to its axis, which may be effected for ex- 5 so avoid the necessity for the operator to make ample by moving the key slightly forward. Pivlong or difiicult stretches when depressing two oted. to the key below the key supporting shaft is distantly spaced keys with one hand and enable a forked plate a which embraces the shaft a a person with a small hand to operate the maand has two notches a a formed on one edge chine with ease. It has been proposed to effect to engage a spring pressed pivoted detent a which 0 this latching through mechanism actuated by a maintains the key in either its normal or its dispartial depression of a key or keys but in this placed position. When the key is pulled forward I arrangement if a key is depressed beyond the the plate a is turned by contact with the staamount required to effect the latching, all the tionaryshaftato cause the notch a to engage the other keys become locked and a correct sale which detent a and when the key is pushed back the involves the depression of a number of keys canplate is turned to cause the notch 11 to engage not be registered at that operation. Another disthe detent a When the key occupies its dis- I advantage of this arrangement is that on the placed position as shown at A the usual slot a return stroke of the keys it is possible to uncouple in the rear end of the key engages the common one or more keys before the common key coupler key coupler. Due to the position of the centres reaches the end of its stroke, so as to throw the of the common key coupler B and of the key machine into an inoperative condition. supporting shaft a the movement of the coupler g The present invention has for its object to induring its upward stroke automatically returns troduce an improved method of effecting the any key occupying a displaced position to its noraforesaid latching which will be simple in conmal position by the engagement of the coupler 7 struction, positive in action and be free from the with the end of the slot (1 as shown in Fig. 3. above mentioned disadvantages. By the invention described any key which may According to this invention any or every key have been latched in error can be unlatched with of the cash register is so constructed or mounted out having to complete a transaction providing that it can be displaced in relation to its axis such unlatching is done before any key is deto cause the key to engage the common key pressed, but'on the keys being depressed all the coupler so that when another key is depressed keys are united to the coupler for the full downthe key or keys so coupled are also depressed. ward and upward stroke, and cannot be disen- The mechanism is so designed that the coupler gaged from the coupler until the latter has per- 35 during its upward movement automatically reformed all the functions for which it is designed.

stores any of the keys which have been so dis- What I claim as my invention and desire to placed to the normal position. secure by Letters Patent in the United States is:-

In the accompanying drawings: 1. In a key operated cash register or the like,

Fig. 1 is a section showing two rows of keys the combination of keys each having a slot for 40 in a normal position in relation to the common a common key supporting shaft, a key coupler for key coupler, and coupling engagement with the rear ends of the Fig. 2 is a similar view showing one of the keys, a pivoted member carried by each key and keys displaced to engage the common key coupler, associated with said common shaft for movement and thereby, a second pivoted member arranged ad- 45 Fig. 3 shows such key returned to its normal jacent said first mentioned pivoted member and or inward position by the upward movement of carried by each key, and means carried by said the key coupler. pivoted members for retaining the key in a for- A indicates the keys, A a displaced key and B ward or rearward position. the coupler. 2. In a key operated cash register, the combi- 50 In the example shown for latching the keys to nation of keys-having a slot for a common key nation of keys each having a slot for a common key supporting shaft, a key coupler adapted to be engaged by slots in the rear ends of the keys, a forked plate pivoted to each key below the common shaft and arranged to embrace the latter, the said forked plate having two notches formed in one edge, and a spring pressed detent adapted to engage one or other of said notches when the key is moved forward or backwards and retain it in its forward, or rearward position.

ARTHUR HENRY GLEDHR-L.

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